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| ebowden | paperbot: http://www.sciencedirect.com/science/article/pii/S0168010214002119 | 01:34 |
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| paperbot | http://diyhpl.us/~bryan/papers2/paperbot/%0A%20Disruption%20of%20striatal-enriched%20protein%20tyrosine%20phosphatase%20%28STEP%29%20function%20in%20neuropsychiatric%20disorders%0A%20.pdf | 01:34 |
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| kanzure | fenn: universal psychometrics http://users.dsic.upv.es/~flip/papers/TR-upsycho2012.pdf | 07:09 |
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| kanzure | hehe "While the results show that some improvement can be shown because of the enriched human context, animal abilities are limited by their genes. What about machines? Things are more complex here. Theoretically, it is possible to construct a machine such that it is dumb until an appropriate “training” signal is received, when it changes into another state where it becomes intelligent. In fact, for any universal Turing machine (UTM) ... | 07:35 |
| kanzure | ... there is an input —a program— such that the machine becomes any other machine, e.g., a machine with any degree of actual intelligence. So we could loosely say that any UTM has maximal potential intelligence (and the same applies for any cognitive ability). However, if we construct a second machine such that this second state is accessed much more easily (without the need of a very specific input), we can intuitively say that the ... | 07:35 |
| kanzure | ... second machine has more potential intelligence." | 07:35 |
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| kanzure | jrayhawk: this thing argues that human cognitive ability is sexually selected because it indicates disease resistance http://phthiraptera.info/Publications/47267.pdf | 12:12 |
| kanzure | i'm not really sure if that's strong enough though | 12:13 |
| kanzure | i would imagine that not being dead would be a good enough indicator | 12:13 |
| bbrittain | paperbot: http://www.sciencedirect.com/science/article/pii/S0304420313001242 | 12:27 |
| paperbot | http://diyhpl.us/~bryan/papers2/paperbot/%0A%20Biogenic%20halocarbons%20in%20young%20Arctic%20sea%20ice%20and%20frost%20flowers%0A%20.pdf | 12:28 |
| bbrittain | :/ | 12:30 |
| bbrittain | new plan, never graduate, keep my school paper access | 12:31 |
| bbrittain | nmz787: ^ | 12:31 |
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| kanzure | that is a good plan | 13:08 |
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| kanzure | "Artificial selection on relative brain size in the guppy reveals costs and benefits of evolving a larger brain" http://users.dsic.upv.es/~flip/papers/MINDS-MACHINES-potential.pdf | 13:30 |
| kanzure | whoops, how about http://www.iee.unibe.ch/unibe/philnat/biology/zoologie/content/e7493/e7854/e355359/e373691/KotrschalCurrentBiol2013.pdf | 13:33 |
| poppingtonic | .title | 13:33 |
| yoleaux | poppingtonic: Sorry, that doesn't appear to be an HTML page. | 13:33 |
| poppingtonic | oops | 13:33 |
| kanzure | "Relative brain size was already 9% larger in the upward- compared to the downward-selected lines after two generations of selection" | 13:35 |
| kanzure | hehe just two generations | 13:35 |
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| poppingtonic | i'm gonna have to read these... | 14:03 |
| kanzure | also try http://diyhpl.us/~bryan/papers2/neuro/Human-specific%20transcriptional%20networks%20in%20the%20brain.pdf | 14:04 |
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| jrayhawk | "in fact, IQ-heritability studies measure | 14:09 |
| jrayhawk | the heritability of disease resistance to some ex- | 14:09 |
| jrayhawk | tent" | 14:09 |
| jrayhawk | that was the only insightful thing in this entire paper | 14:09 |
| kanzure | can you specify how shit their hypothesis was? | 14:15 |
| kanzure | i'm really strugging to postulate credible selection mechanisms for human cognitive abilities in evolutionary history | 14:16 |
| kanzure | *struggling | 14:16 |
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| andytoshi | kanzure: leading idea is politics no? | 15:16 |
| andytoshi | outsmart everyone to be the harem master | 15:16 |
| kanzure | but where did that come from? | 15:18 |
| kanzure | here are the mechanisms that wikipedia proposes: http://en.wikipedia.org/wiki/Evolution_of_human_intelligence#Models | 15:18 |
| kanzure | "He argues that the manifestations of intelligence such as language, music and art did not evolve because of their utilitarian value to the survival of ancient hominids. Rather, intelligence may have been a fitness indicator." (lame) | 15:20 |
| andytoshi | that's lame | 15:20 |
| namespace | Lame. | 15:20 |
| andytoshi | intelligence is a fully general advantage | 15:20 |
| kanzure | "Intelligence as a disease resistance signal" | 15:20 |
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| namespace | "Intelligence is a fitness indicator" is like saying "Being able to grow arms is a fitness indicator" | 15:20 |
| kanzure | "The group benefits of intelligence have apparent utility in increasing the survival potential of a group" | 15:21 |
| kanzure | yeah so those were the best ideas known to man | 15:21 |
| kanzure | for why human cognitive ability was selected for | 15:21 |
| kanzure | pretty pathetic | 15:21 |
| namespace | Well to be fair. | 15:21 |
| namespace | Those are so bad that we're looking at something on the order of "Nobody really thought about it." | 15:21 |
| namespace | Rather than "Somebody seriously thought about it and they're an idiot." | 15:21 |
| kanzure | these have references, so they thought about it enough to put words onto paper | 15:22 |
| namespace | D: | 15:22 |
| namespace | -1 Faith in humanity | 15:22 |
| kanzure | andytoshi: i was thinking about some mechanism earlier today related to "bride price", where groups of humans bought phenotypes/genotypes with resources | 15:23 |
| kanzure | andytoshi: and maybe cognitive abilities are selected by that sort of group-to-group genetic trade over time | 15:24 |
| kanzure | however, this is not a thorough explanation and it does not feel right to me yet | 15:24 |
| andytoshi | kanzure: well, some of this did happen in the middle ages ... i think this is why white women are hotter than white men? | 15:26 |
| andytoshi | because they would "buy" brides by being royalty? | 15:26 |
| kanzure | women are more attractive because you and i are heterosexual | 15:27 |
| andytoshi | hmm, that might be it | 15:27 |
| kanzure | nice try | 15:27 |
| andytoshi | ;) | 15:27 |
| namespace | kanzure: :P | 15:27 |
| kanzure | "bride price" was happening long before the middle ages | 15:27 |
| namespace | I was about to say "They are?" | 15:27 |
| kanzure | code of hammurabi from ~5000 years ago has rules written in stone about buying mates | 15:28 |
| andytoshi | ok, so, back to intelligence ... istm that no matter what you are doing, it is better to do it more intelligently | 15:29 |
| kanzure | you may be interested in this paper sometime: http://users.dsic.upv.es/~flip/papers/TR-upsycho2012.pdf | 15:30 |
| kanzure | (universal psychometrics for turing machines) | 15:30 |
| kanzure | general intelligence certainly confers lots of survival benefit compared to not having a brain | 15:31 |
| andytoshi | i'm reading the wiki article .. it actually surprises me that intelligence is not a slam dunk | 15:32 |
| kanzure | instead of waiting around for millions of years to get some other kind of adaptation in a species, adaptive behavior in a single lifetime is much better | 15:32 |
| kanzure | what do you mean intelligence as a slam dunk? | 15:32 |
| andytoshi | i mean, it is so beneficial that it should appear in any species with extra resources to support it | 15:33 |
| andytoshi | and since it leads to having extra resources you get a feedback loop | 15:33 |
| kanzure | well, brains in general do appear in many species | 15:33 |
| andytoshi | hmm, yeah, i guess that's evidence that i'm right in a really limited way | 15:34 |
| namespace | General intelligence will not help you much as a fish? | 15:34 |
| kanzure | many properties of the human brain are highly conserved in chimpanzees and gorilla, which are ancestors from more than a million years back | 15:34 |
| kanzure | and other more basic brain parts are conserved in mammals in general too | 15:35 |
| namespace | I mean from what we've seen with humans, general intelligence seems to have a very long setup time compared to a canned instincts/brain sort of deal, so if you have relatively short lifespans its not worth the investment, in fact it's a net negative. | 15:35 |
| andytoshi | kanzure: so this gives credence to the "politics" theory (which on the wiki page i think is dunbar's claim) | 15:36 |
| kanzure | just because it's beneficial does not mean that natural selection will stumbe into it | 15:36 |
| kanzure | *stumble | 15:36 |
| namespace | Like part of why humans work is that we live a relatively long time. | 15:37 |
| andytoshi | kanzure: sure, but i would suggest that if it did, it'd latch on unconditionally.. | 15:37 |
| andytoshi | namespace has some good arguments why i'm wrong | 15:37 |
| kanzure | politics is an okay direction but i'd have to see more, | 15:37 |
| kanzure | dunbar's version is pretty lame | 15:37 |
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| andytoshi | long setup time, big brains make childbirth hard (and babies come out still useless), the brain is a massive resource hog.. | 15:38 |
| kanzure | he posits some direct proportionality to brain volume | 15:38 |
| kanzure | everyone focuses on brain size for some reason | 15:38 |
| andytoshi | oh bleh | 15:38 |
| namespace | kanzure: I wasn't saying that. | 15:38 |
| namespace | kanzure: I just said that it takes a very long time to go from baby to adult human, maybe this is a necessary component? | 15:38 |
| kanzure | there's definitely high resource costs to human brains | 15:38 |
| namespace | Like if you're a fish, you don't have time to learn how not to get eaten, you need to know that from day one. | 15:39 |
| namespace | The ocean is too dangerous for it to be worth learning better evasive tactics with general intelligence. | 15:39 |
| kanzure | selection mechanisms are things like, "in human evolutionary history, aliens showed up on the planet and administered general intelligence tests, and then had selective mating" | 15:39 |
| namespace | kanzure: Hmm, have we dug up any ancient SAT's yet? :P | 15:40 |
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| kanzure | right, that's a highly implausible one | 15:40 |
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| kanzure | "Dunbar theorized that "this limit is a direct function of relative neocortex size, and that this in turn limits group size ... the limit imposed by neocortical processing capacity is simply on the number of individuals with whom a stable inter-personal relationship can be maintained."" | 15:41 |
| kanzure | volume of neocortex -_- | 15:41 |
| namespace | Not to mention that, you have octopuses, which are relatively intelligent as far as seacritter go, but they haven't taken over the world or anything because they're stuck underwater with prehensile limbs. | 15:41 |
| namespace | There's a lot of important hardware that needs to be comorbid with intelligence for world domination. | 15:41 |
| kanzure | an octopus does not have general intelligence as far as we know | 15:42 |
| kanzure | so i don't know why you are mentioning them | 15:42 |
| namespace | Right. | 15:42 |
| namespace | They're the most intelligent non-mammal IIRC? | 15:42 |
| namespace | Was going with my fish theme. | 15:42 |
| kanzure | i don't know what you're taking about at all | 15:43 |
| kanzure | *talking | 15:43 |
| namespace | andytoshi had a hypothesis that general intelligence is such a benefit that we should expect to see it in everything capable of supporting it. I'm pointing out that even though octopi are relatively intelligent, it doesn't actually matter if they get more intelligent because they don't really have enough ability to manipulate their environment for it to matter. | 15:44 |
| namespace | I didn't really explain it very well I'm sorry. | 15:44 |
| kanzure | oh, well andytoshi's hypothesis is wrong because obviously only one species so far has general intelligence | 15:45 |
| kanzure | anthropics, yo | 15:45 |
| namespace | Yup. | 15:45 |
| namespace | If we lived in the universe where it was true, that is what we would observe. | 15:45 |
| namespace | At the same time. | 15:45 |
| kanzure | so nothing about manipulating the environment or whatever | 15:45 |
| namespace | Knowing it's wrong isn't really enough in some cases, knowing *why* something is wrong can be important information. | 15:45 |
| kanzure | parapalegics are still intelligent | 15:45 |
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| namespace | Parapalegics are such as a function of their environment, if you take parapalegic eggs or sperm and make babies with them you will get healthy children. | 15:50 |
| andytoshi | there was a lesswrong article about the politics thing, i can't seem to find it, it should have some good references.. | 15:50 |
| andytoshi | something about one monkey betraying another after pretending to be a servant and eliezier was like "a human would've seen that coming a mile away [and not gotten killed]" | 15:51 |
| kanzure | monkeys are just as old, or even older, than we are | 15:52 |
| kanzure | the ability to buy genotypes/phenotypes is something that hasn't happened anywhere else in evolutionary history | 15:53 |
| kanzure | although maybe that only works for the past 70,000 to 100,000 years of human evolution | 15:54 |
| kanzure | before which hominid remains are not seen with valuables or posessions as much | 15:54 |
| kanzure | oh, 500k years actually. hmm. that's more likely. | 15:55 |
| kanzure | http://en.wikipedia.org/wiki/Behavioral_modernity | 15:55 |
| kanzure | oh, that's 50k. uh... | 15:55 |
| * namespace idly wonders if there's enough information in the universe left to determine this to our satisfaction | 15:55 | |
| kanzure | uh sure there is | 15:56 |
| namespace | Yes of course what am I even saying. | 15:56 |
| kanzure | all you have to do is come up with some plausible mechanisms and then think hard about them | 15:56 |
| kanzure | then you can test on monkeys | 15:56 |
| namespace | I doubt we'll actually get to the testing on monkeys stage. | 15:56 |
| namespace | Because ethics. | 15:56 |
| kanzure | yes, raising monkeys is so fucking unethical | 15:57 |
| namespace | Do you think an ethics review board would okay it if the explicit goal was to get human level intelligence out of it? | 15:57 |
| namespace | I'm not saying I agree with that, but I doubt they would. | 15:57 |
| kanzure | an ethics review board is not the crown jewel of being ethical -_- | 15:58 |
| namespace | When I said 'ethics' it was shorthand for such. | 15:58 |
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| kanzure | besides, you hardly know the details of my idea, so from my point of view you're the one being unethical here | 15:59 |
| namespace | Um what? | 16:00 |
| kanzure | you heard me :) | 16:00 |
| namespace | I did. | 16:00 |
| namespace | And what you said seems to be relying on assumptions that are not true. | 16:00 |
| kanzure | i believe it is unethical to appeal to authority (especially "ethics" authorities) | 16:00 |
| kanzure | especially for ideas that haven't even been elaborated | 16:00 |
| kanzure | "authorities" | 16:00 |
| namespace | That statement was in the same vein as if you'd said you had a cure for aging and I'd said: | 16:01 |
| namespace | "Oh I bet the FDA will skewer you over it." | 16:01 |
| namespace | And then you go: | 16:01 |
| namespace | "APPEAL TO AUTHORITY" | 16:01 |
| namespace | And I go: | 16:01 |
| namespace | "Um that's not what I-" | 16:01 |
| namespace | "UNETHICAL" | 16:01 |
| kanzure | yes and? | 16:01 |
| namespace | I'm saying that you're attacking me for no good reason? | 16:02 |
| kanzure | in general i tend to attack bad ideas | 16:02 |
| namespace | Cynical observations about how society will treat things are now Bad Ideas? | 16:03 |
| kanzure | no, it is a bad idea for you to suggest some threat vector that is totally superfluous at this stage of idea development | 16:04 |
| namespace | Well okay if you insist. | 16:04 |
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| kanzure | also, it would be super unfortunate if the fda started sending nastygrams and lawsuit notices over just talking about nutrition | 16:05 |
| kanzure | or if ethics review boards were to have jurisdiction over ideation | 16:05 |
| kanzure | namespace: http://web.archive.org/web/20130709183013/http://www.maxmore.com/extprn3.htm | 16:06 |
| namespace | kanzure: Um, you're starting to take what I said into wholly new territory from where I'd started. Which was that I'm not sure we can in practice test on monkeys, which I do not think is a bad observation to make? | 16:06 |
| kanzure | namespace: http://diyhpl.us/wiki/declaration | 16:06 |
| kanzure | anyone can own a monkey man | 16:06 |
| namespace | ... | 16:07 |
| namespace | How does this monkey man feel about this? | 16:07 |
| kanzure | i meant to put a comma after monkey | 16:07 |
| kanzure | and i did not | 16:07 |
| namespace | *the monkey man | 16:08 |
| kanzure | andytoshi: so one idea is that if there is a good psychometric test for general intelligence, or a good definition, then you could just run a genetic algorithm on some fancypants hardware for a while and see what happens | 16:11 |
| kanzure | andytoshi: alternatively, if you knew what the selection mechanisms may have been in human history, then you could replicate those sorts of effects on software programs | 16:12 |
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| kanzure | you could even have things approximating gene trading (software trading) between different agents in your pool | 16:12 |
| andytoshi | those both sound really computationally hard because humans have been manipulating their environment since forever | 16:13 |
| kanzure | the above paper about universal psychometric testing for universa turing machines has some suggestions for the testing aspect | 16:14 |
| kanzure | but the downside is that you would need to make a bunch of tests using their suggested format (it's related to kolmogorov complexity) | 16:14 |
| kanzure | maybe you could arbitrarily generate tests automatically | 16:16 |
| kanzure | er, this is clearly the "iterative" approach, i don't know why i just suggested that | 16:18 |
| kanzure | i retract my test generation statement | 16:18 |
| kanzure | except to the extent that you pick "good" tests, and then just have a collection of "good" tests | 16:18 |
| namespace | Burnin8 wants us to move the convo into #lesswrong to get the crap out of there | 16:24 |
| namespace | I'm not sure this is actually a good idea, personally. | 16:24 |
| Burnin8 | depends on whether you want more participants or not | 16:25 |
| * namespace was done with it, personally | 16:25 | |
| namespace | I got the impression I was giving Kanzure the impression I'm dumb, so I stopped. | 16:25 |
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| poppingtonic | kanzure: why does Dunbar's theory, esp the part about neocortical volume, seem implausible? | 16:49 |
| kanzure | at minimum, a correlation is not an explanation | 16:50 |
| kanzure | absolute brain volume is reduced in children and they function just fine | 16:51 |
| kanzure | and tiny people... | 16:51 |
| kanzure | it also seems unlikely that just meeting lots of people is a good reason why over time more cognitive abilities were selected for | 16:51 |
| kanzure | considering that many other animals live in very large herds and groups and do not have the human range of cognitive abilities at the moment | 16:52 |
| kanzure | i'm sure there's other things broken there | 16:52 |
| fenn | "this hypothesis can explain why humans enjoy wasting most of their intellectual capabilities for totally useless purposes" | 17:32 |
| fenn | it's not that the brain is particularly vulnerable to infections, but that the immune system and brain are both huge metabolic energy users, and in the evolutionary environment (or even much of the modern world) the body can't support both brain development and fending off infection at the same time | 17:34 |
| fenn | this is probably why the flynn effect exists | 17:34 |
| andytoshi | fenn: what are you quating? | 17:36 |
| andytoshi | quoting | 17:37 |
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| kanzure | immunity signaling seems insufficiently strong for a reason for the particular changes in human cognition | 17:51 |
| kanzure | i wonder if there's parental selection for intelligence in potential mates for offspring | 18:08 |
| kanzure | and maybe parents were in charge of accepting bribes | 18:08 |
| kanzure | intelligence really isn't that high on the list of priorities compared to say sexual attributes that might more realistically confer advantages to raising resource-hungry brain development | 18:09 |
| kanzure | *list of priorities [in mate selection] | 18:09 |
| fenn | quoting "the rise of non-adaptive intelligence in humans under pathogen pressure" | 18:19 |
| fenn | kanzure said "maybe cognitive abilities are selected by that sort of group-to-group genetic trade over time" | 18:20 |
| fenn | not sure what "genetic trade" means but the ashkenazi jews showed strong selection for mathematical abilities during the middle ages because of the taboo/exile status as money changers | 18:20 |
| kanzure | genetic trade is referring to "bride price" practices | 18:21 |
| kanzure | of buying females for mating from other groups/tribes/clans/whatever | 18:21 |
| kanzure | buying would usually involve "money", jewels, rocks, stones, livestock, surplus food, tools | 18:21 |
| kanzure | it seems to be called marriage/dowry now, but i don't know what history people call it | 18:22 |
| fenn | half the time dowry goes in the opposite direction i expect it to | 18:22 |
| kanzure | my "trade" thing isn't a fully formed idea though | 18:23 |
| kanzure | somehow being clever means you get more resources and stuff to collect... and then you buy whatever you want.. but how does this select for cognitive ability at all? | 18:24 |
| kanzure | later in life you're selecting suitors who bring you good valuables? | 18:24 |
| fenn | money is a fitness indicator | 18:24 |
| fenn | or rather, symbols of money like fancy clothes and gold plated cars | 18:24 |
| kanzure | right... but i'm not ready to say it's indicative of cognitive ability... | 18:24 |
| kanzure | maybe it's indicative of cognitive ability 60,000 years ago | 18:25 |
| fenn | that's all that matters | 18:25 |
| kanzure | would it be? | 18:25 |
| fenn | evolution is pretty slow most of the time | 18:25 |
| kanzure | the past 100k years did some pretty fast stuff | 18:25 |
| kanzure | so it had to be some sort of socially-mediated selection | 18:25 |
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| fenn | why did it have to be social | 18:26 |
| fenn | how many stories are there about young brides and princes | 18:26 |
| fenn | prince = guy with money | 18:26 |
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| kanzure | well usually you have populations that are pretty bad until there's some mutation that happens to help | 18:27 |
| kanzure | with brains you don't need to wait around that long | 18:27 |
| kanzure | and if brains are getting better at mate selection or something, then i would call that social | 18:28 |
| kanzure | okay, maybe it should be cognitive selection | 18:28 |
| kanzure | except i would expect to see evidence of mate selection based on cognitive abilities if that was the case, and there's only very obscure examples of that in modern society | 18:29 |
| fenn | you mean cultural mores cause people to select mates with money? | 18:29 |
| kanzure | no | 18:29 |
| kanzure | oh, so what i meant about that money thing | 18:29 |
| kanzure | was specifically the cultural practice where the prince buys the daughter from the other family | 18:29 |
| kanzure | code of hammurabi says a lot about this practice | 18:29 |
| kanzure | sounds like it was very widespread and universal | 18:29 |
| fenn | in modern india the bride pays the prince's family for the privilege of marrying him (i think) | 18:30 |
| kanzure | errr... processing. | 18:30 |
| fenn | i always get confused about this | 18:30 |
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| fenn | "A dowry is the transfer of parental property to a daughter at her marriage" | 18:31 |
| kanzure | right.. i was arguing about this with gwern | 18:32 |
| kanzure | that exact sentence from wikipedia | 18:32 |
| kanzure | "bride price" makes much more sense to me | 18:32 |
| fenn | gah this article rapidly devolves to academic "so and so believes..." | 18:32 |
| fenn | "bride price" makes more sense but it doesn't relflect reality | 18:33 |
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| fenn | oh boy "6 percent of North American indigenous cultures practised reciprocal exchange, involving the giving of gifts between both the bride and groom's families." | 18:35 |
| fenn | "property brought to the marriage by the bride is called a dowry. Property made over to the bride's family at the time of the wedding is a bride price. This property does not pass to the bride herself." | 18:36 |
| heath | .title https://github.com/np1/pafy | 18:36 |
| yoleaux | np1/pafy · GitHub | 18:36 |
| heath | Python library to download YouTube content and retrieve metadata | 18:36 |
| fenn | so i think bride price and dowry are opposites | 18:37 |
| kanzure | i vote to just get rid of dowry and start over | 18:37 |
| kanzure | also the 6% thing is a little strange- is that modern-day only, or what | 18:37 |
| kanzure | i mean, everyone still buys diamond rings | 18:37 |
| kanzure | presumably diamond ring buying is an extension of past behavior | 18:37 |
| fenn | indigenous cultures = Native Americans | 18:38 |
| kanzure | sure | 18:38 |
| fenn | their culture has been so thoroughly fucked over it's hard to say anything meaningful about modern day practices | 18:38 |
| kanzure | maybe the practice of bride price just got corrupted over time | 18:39 |
| kanzure | and turned into other weird things that nobody knows why they bother with | 18:39 |
| fenn | because it's more useful to have money at the start of a marriage than when your parents die | 18:39 |
| kanzure | "here's a sheep if you let your daughter marry me" | 18:40 |
| kanzure | this is bride price, right? | 18:40 |
| fenn | yes | 18:40 |
| fenn | it gets weird because the husband usually controls the finances of the new couple; so any gifts to "the bride" actually end up going to the husband | 18:40 |
| kanzure | right.. | 18:41 |
| kanzure | sorta makes sense though that you would want your immediate descendants to have similar resources as you have | 18:41 |
| kanzure | none of this seems like selecting for cognitive abilities would be a side effect, in any obvious sort of way | 18:42 |
| kanzure | hehe maybe for ability to understand dowry :) | 18:42 |
| fenn | it's only difficult for you to understand because it's not part of your culture | 18:43 |
| kanzure | i think wikipedia is just poorly written here | 18:43 |
| kanzure | "parental property" come on | 18:43 |
| fenn | eh? | 18:43 |
| kanzure | "parent's property" if that's what's meant | 18:44 |
| fenn | ok here's the one that fucks everything up: "[in India] Dowry is a payment of cash or gifts from the bride's family to the bridegroom's family upon marriage." | 18:44 |
| kanzure | so another possibility is that there was no single selective mechanism that most strongly influenced the evolution of cognitive abilities in humans | 18:45 |
| kanzure | and instead it was 400 competing things | 18:45 |
| kanzure | but, there were always competing reasons that moar cognitive abilities would have been useful | 18:46 |
| kanzure | even for other species | 18:46 |
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| kanzure | so that is why i think there is probably at least one rather plausible, strong mechanism that must have been in effect | 18:47 |
| fenn | this is why i tend to go with "aquatic diet enables big brains" | 18:51 |
| kanzure | still not convinced about size of brain organs | 18:52 |
| fenn | oh jeez really | 18:52 |
| fenn | birds and bees aside, intelligence and brain size are totally correlated | 18:53 |
| kanzure | i am convinced that the size of brains has changed | 18:53 |
| kanzure | i'm also willing to go with correlation, sure | 18:53 |
| kanzure | but i am more concerned about cognitive abilities | 18:53 |
| fenn | given that big brains are metabolically (and catabolically) expensive, if it weren't important i'm 100% certain evolution would have pruned it away by now | 18:54 |
| kanzure | even non-particularly-cognitive-able-as-human brains are kept around | 18:54 |
| fenn | only stuff that's not neocortex | 18:55 |
| fenn | fine, "aquatic diet enables big neocortex" | 18:55 |
| fenn | because a bigger brainstem confers no advantage | 18:55 |
| kanzure | "bigger's better because texas" | 18:56 |
| kanzure | "nuber of neurons" | 18:56 |
| kanzure | *number | 18:56 |
| fenn | yeah, more neurons, more memory, more chance of recognizing familiar situations | 18:56 |
| kanzure | why are you fixated on number of neurons instead of any of the other differences in brain biology to say chimpanzees | 18:56 |
| kanzure | such as uh, the one about myelination | 18:56 |
| fenn | because i don't know about the other differences really | 18:57 |
| fenn | neuroscience is really hard to navigate | 18:57 |
| fenn | also things with bigger brains seem to be more intelligent | 18:57 |
| fenn | "why are you so fixated on the one thing that seems to correlate with what we're interested in!?" | 18:58 |
| kanzure | hmm i thought i had a link to a paper with a table of neuron and brain differences between human and chimpanzees | 18:58 |
| fenn | http://fennetic.net/irc/human_chimpanzee_brain_differences.png | 18:59 |
| kanzure | hey that's the one | 19:00 |
| fenn | "A. a. 3 times more neurons" right at the top of the list | 19:00 |
| fenn | so, hard drives are pretty good at storing data but they have terrible latency and bandwidth vs storage size | 19:02 |
| fenn | if you think of the neocortex as an associative memory, intelligence is the ability to remember similar situations | 19:03 |
| kanzure | "Prominent brain shrinkage at old age" | 19:03 |
| fenn | that's overstated | 19:06 |
| fenn | a) chimpanzees don't live to old age because of poor quality of life, b) the shrinkage is gradual over decades | 19:07 |
| fenn | standards of living, whatever | 19:08 |
| kanzure | "A high density of X-linked genes for general cognitive ability: a run-away process shaping human evolution?" https://www.genetikum.de/images/PDF/Diverses/TIG-High-density-on-X-linked-genes.pdf | 19:08 |
| kanzure | not specifically related to this question | 19:08 |
| fenn | do educated people usually know about x-inactivation? somehow i never learned about this until recently | 19:09 |
| * fenn senses a conspiracy of feminist reptilians from sirius A | 19:13 | |
| kanzure | nope wasn't aware of that | 19:15 |
| kanzure | seems important to me | 19:15 |
| kanzure | i wonder how many generations of selective breeding would be required to get humans down to lower brain volumes | 19:21 |
| kanzure | that might help the problem of mind uploading | 19:21 |
| kanzure | or uh brain scanning i mean | 19:21 |
| kanzure | when there's less brain to scan | 19:21 |
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| fenn | "obviously only one species so far has general intelligence" i think this is wrong | 19:31 |
| fenn | the reason humans are so much more effective is we have intelligence, language, and hands | 19:32 |
| fenn | any one of which is not as useful alone | 19:32 |
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| kanzure | if humans are not the only species with general intelligence then only the conserved brain properties matter | 19:34 |
| fenn | this combination allows you to teach someone else how to build something | 19:36 |
| kanzure | you don't need language for that | 19:36 |
| Urchin[emacs] | kanzure: developing better brain scanning would probably be faster | 19:38 |
| kanzure | there's just so much of it though | 19:38 |
| fenn | somehow the use of language allows preservation of knowledge across longer spans of time | 19:39 |
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| fenn | why was he shushed? | 19:41 |
| kanzure | all sorts of reasons | 19:41 |
| kanzure | 18:23 < AdrianG> superkuh: r u aspergian | 19:41 |
| kanzure | 18:25 <@kanzure> AdrianG: can't you just leave | 19:41 |
| kanzure | 18:25 < AdrianG> no :< | 19:41 |
| kanzure | 18:25 < AdrianG> im addicted to this chat. | 19:41 |
| kanzure | 18:25 < AdrianG> why do you hate me. | 19:42 |
| fenn | language allows the incorporation of new tricks into the noome or neo-genome or whatever we decide to call it | 19:43 |
| kanzure | cognitome :( | 19:43 |
| fenn | yuck | 19:43 |
| fenn | .wik noosphere | 19:43 |
| yoleaux | "The noosphere (/ˈnoʊ.əsfɪər/; sometimes noösphere) is the sphere of human thought. The word derives from the Greek νοῦς (nous "mind") and σφαῖρα (sphaira "sphere"), in lexical analogy to "atmosphere" and "biosphere". It was introduced by Pierre Teilhard de Chardin in 1922 in his Cosmogenesis." — http://en.wikipedia.org/wiki/Noosphere | 19:43 |
| fenn | cogni-* implies some kind of active processing occurring | 19:44 |
| fenn | noo-* is just there in storage | 19:44 |
| kanzure | so one idea i was thinking about was applying directed evolution to artificial general intelligence projects | 19:45 |
| fenn | "In colloquial British English, nous also denotes "good sense", which is close to one everyday meaning it had in Ancient Greece." | 19:45 |
| kanzure | hell, 50% of the past million years was spent sleeping | 19:45 |
| kanzure | that definitely doesn't need to be replicated | 19:45 |
| fenn | au contraire | 19:45 |
| fenn | even flies sleep, there's a good reason for it | 19:45 |
| kanzure | says the supersleeper | 19:45 |
| kanzure | even flies have brains | 19:46 |
| Urchin[emacs] | de Chardin - the guy who thought that humans are a part of God's reproductive system, set to create a new universe | 19:46 |
| fenn | i'd rather sleep less, sure, but that doesn't mean i can wish it away | 19:46 |
| fenn | Urchin[emacs]: yeah this was part of my childhood | 19:47 |
| kanzure | well, i don't know how to implement sleep in code, so let's skip that | 19:47 |
| fenn | garbage collection | 19:47 |
| kanzure | there's evidence for other non-garbage-collection-related activities though | 19:47 |
| Urchin[emacs] | fenn: mine too, I just haven't heard of it in a long while | 19:48 |
| fenn | dreams have something to do with transfering memories to long term memory | 19:48 |
| kanzure | also, idea-trade and gene-trade and reproduction get fucked up in the ai domain | 19:48 |
| kanzure | i don't see a good reason for a difference between "idea-trade" and "gene-trade" | 19:48 |
| fenn | one is related to prediction and the other is related to function | 19:50 |
| fenn | you could trade algorithms without having a use in mind for them | 19:50 |
| fenn | but a gene is directed toward some specific goal | 19:50 |
| fenn | or function | 19:51 |
| fenn | s/goal/function/ | 19:51 |
| kanzure | even humans execute "ideas" they come across | 19:51 |
| kanzure | they just inhibit any behavior that would result from that idea or something, unless they evaluated it to be salient to their interests etc | 19:51 |
| fenn | when you think about evolving AI architectures you have to separate the data structure from the data, or all hell breaks loose | 19:51 |
| kanzure | why? | 19:51 |
| fenn | because self modifying code is ridiculous | 19:52 |
| fenn | it just is | 19:52 |
| fenn | it's unpredictable | 19:52 |
| kanzure | so? | 19:52 |
| fenn | that's why self-modifying code has been outlawed (by OS authors) on most computing platforms | 19:52 |
| fenn | https://en.wikipedia.org/wiki/Self-modifying_code#Self-referential_machine_learning_systems | 19:53 |
| kanzure | "Traditional machine learning systems have a fixed, pre-programmed learning algorithm to adjust their parameters. However, since the 1980s Jürgen Schmidhuber has published several self-modifying systems with the ability to change their own learning algorithm. They avoid the danger of catastrophic self-rewrites by making sure that self-modifications will survive only if they are useful according to a user-given fitness, error or reward ... | 19:54 |
| kanzure | ... function." | 19:54 |
| kanzure | that all sounds totally trivial and boring | 19:54 |
| kanzure | so maybe you choose to isolate some components, maybe not, maybe there's some breakout exploit. meh. | 19:54 |
| fenn | that just changes the algorithm, not the data structure itself | 19:55 |
| kanzure | most possible changes to any code will make it crash, and that's fine | 19:56 |
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| kanzure | this is not some code permutation engine | 19:56 |
| fenn | it's bad for the individual agent to have a high probability of accidentally committing suicide | 19:56 |
| kanzure | i don't think i'm suggesting otherwise | 19:57 |
| fenn | there's some kind of information theory problem here about simulating a system in perfect detail using the system itself but without increasing the size of the system | 19:57 |
| fenn | map and territory recursion | 19:58 |
| kanzure | whatever | 19:58 |
| kanzure | i am not concerned about self-modifying code | 19:58 |
| fenn | if you can't simulate the effect of your modification it's like jumping off a cliff and hoping you survive | 19:59 |
| catern | code is data yo | 19:59 |
| catern | data is code | 19:59 |
| * catern sips his lisp | 19:59 | |
| fenn | catern: your appearance was not unexpected | 19:59 |
| kanzure | catern: https://www.youtube.com/watch?v=rdj6deraQ6k&index=84&list=PL85F050BEFA28E044 | 19:59 |
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| fenn | .title | 20:00 |
| yoleaux | Abelson Stole The Precious Course - MIT Version - YouTube | 20:00 |
| catern | a classic | 20:00 |
| fenn | anyway forking on modification is totally fine and that's what biology does | 20:01 |
| kanzure | meh | 20:01 |
| fenn | cancer, viruses notwithstanding | 20:01 |
| kanzure | if you want to emulate biology then just emulate biology.. | 20:02 |
| kanzure | which, i do, but that's a different topic i think | 20:02 |
| fenn | you wanted to know the difference between gene trade and idea trade... | 20:02 |
| kanzure | i don't think there has to be a difference | 20:03 |
| fenn | an idea can become a gene (data can become code) but you'd be foolish to stuff it into your running self | 20:03 |
| kanzure | all genes can be received through ideas | 20:03 |
| kanzure | by which i mean uh data | 20:03 |
| kanzure | sensory input | 20:03 |
| kanzure | i was hoping that by figuring out which particular selective mechanisms were in effect influencing cognitive abilities in humans that the mechanism could be repeated for critterdrug | 20:06 |
| kanzure | my bad i mean telepathic-critterdrug | 20:06 |
| fenn | most alife stuff is far too simplistic imho | 20:07 |
| fenn | "we'll just use a 32 bit genome" derp | 20:07 |
| fenn | there was one thing with simulated sensory input based on a simulated environment that looked vaguely interesting | 20:08 |
| fenn | anything like that needs a lot of time in the real world to be useful though | 20:10 |
| kanzure | i wonder how far back the conserved brain stuff goes. hrm. | 20:10 |
| fenn | otherwise it will just optimize for the quirks of your particular simulation | 20:10 |
| kanzure | mice have most of the right parts | 20:11 |
| fenn | vertebrates | 20:11 |
| kanzure | "According to research the cerebrum first developed about 200 million years ago, having a unique highly convoluted surface that is called the neocortex" | 20:11 |
| fenn | .wik coelacanth | 20:11 |
| yoleaux | "The coelacanths (i/ˈsiːləkænθ/ SEE-lə-kanth) constitute a now rare order of fish that includes two extant species in the genus Latimeria: the West Indian Ocean coelacanth (Latimeria chalumnae) and the Indonesian coelacanth (Latimeria menadoensis)." — http://en.wikipedia.org/wiki/Coelacanth | 20:11 |
| kanzure | goldfish might work, what's in their brain | 20:13 |
| kanzure | http://en.wikipedia.org/wiki/Evolution_of_the_brain#Genetic_factors_contributing_to_modern_evolution "Lahn's earlier studies displayed that Microcephalin experienced rapid evolution along the primate lineage which eventually led to the emergence of Homo sapiens. After the emergence of humans, Microcephalin seems to have shown a slower evolution rate. On the contrary, ASPM showed its most rapid evolution in the later years of human ... | 20:14 |
| kanzure | ... evolution once the divergence between chimpanzees and humans had already occurred.[9]" | 20:14 |
| kanzure | "Over the past 20,000 years, the average volume of the human male brain has decreased from 1,500 cubic centimeters to 1,350 cc, losing a chunk the size of a tennis ball. The female brain has shrunk by about the same proportion. " | 20:15 |
| kanzure | from http://discovermagazine.com/2010/sep/25-modern-humans-smart-why-brain-shrinking (i haven't evaluated this please don't shoot me) | 20:16 |
| fenn | is that because people are living longer? (brain shrinks with age) | 20:16 |
| fenn | i thought it was the opposite anyway | 20:16 |
| fenn | 20k years coincides with agriculture | 20:17 |
| fenn | lack of aquatic diet would be a major strain on a system that evolved with plenty of omega-3 available | 20:18 |
| Urchin[emacs] | loss of senses? | 20:19 |
| kanzure | "Another popular theory attributes the decrease to the advent of agriculture, which, paradoxically, had the initial effect of worsening nutrition. Quite simply, the first farmers were not very successful at eking out a living from the land, and their grain-heavy diet was deficient in protein and vitamins—critical for fueling growth of the body and brain. In response to chronic malnutrition, our body and brain might have shrunk. Many ... | 20:19 |
| kanzure | ... anthropologists are skeptical of that explanation, however. The reason: The agricultural revolution did not arrive in Australia or southern Africa until almost contemporary times, yet brain size has declined since the Stone Age in those places, too." | 20:19 |
| fenn | "protein and vitamins" duhhhh no | 20:20 |
| kanzure | "The observation led the researchers to a radical conclusion: As complex societies emerged, the brain became smaller because people did not have to be as smart to stay alive. As Geary explains, individuals who would not have been able to survive by their wits alone could scrape by with the help of others—supported, as it were, by the first social safety nets." | 20:20 |
| fenn | the idiocracy hypothesis | 20:21 |
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| kanzure | "Hawks spent last summer measuring skulls of Europeans dating from the Bronze Age, 4,000 years ago, to medieval times. Over that period the land became even more densely packed with people and, just as the Missouri team’s model predicts, the brain shrank more quickly than did overall body size, causing EQ values to fall. In short, Hawks documented the same trend as Geary and Bailey did in their older sample of fossils; in fact, the ... | 20:21 |
| kanzure | ... pattern he detected is even more pronounced. “Since the Bronze Age, the brain shrank a lot more than you would expect based on the decrease in body size,” Hawks reports. “For a brain as small as that found in the average European male today, the body would have to shrink to the size of a pygmy” to maintain proportional scaling." | 20:21 |
| fenn | "others believe that the reduction in brain size is proof that we have tamed ourselves, just as we domesticated sheep" | 20:24 |
| fenn | wake up sheeple! | 20:24 |
| kanzure | "“When you select against aggression, you get some surprising traits that come along with it,” Wrangham says. “My suspicion is that the easiest way for natural selection to reduce aggressiveness is to favor those individuals whose brains develop relatively slowly in relation to their bodies.” When fully grown, such an animal does not display as much aggression because it has a more juvenile brain, which tends to be less ... | 20:24 |
| kanzure | ... aggressive than that of an adult. “This is a very easy target for natural selection,” Wrangham argues, because it probably does not depend on numerous mutations but rather on the tweaking of one or two regulatory genes that determine the timing of a whole cascade of developmental events. For that reason, he says, “it happens consistently.” The result, he believes, is an adult possessing a suite of juvenile characteristics, ... | 20:24 |
| kanzure | ... including a very different temperament." | 20:24 |
| kanzure | "So what breeding effect might have sent humans down the same path? Wrangham offers a blunt response: capital punishment. “Over the last 100,000 years,” he theorizes, “language became sufficiently sophisticated that when you had some bully who was a repeat offender, people got together and said, ‘We’ve got to do something about Joe.’ And they would make a calm, deliberate decision to kill Joe or expel him from the group—the ... | 20:25 |
| kanzure | ... functional equivalent of executing him.” Anthropological records on hunter-gatherers suggest that capital punishment has been a regular feature of our species, according to Wrangham. In two recent and well-documented studies of New Guinea groups following ancient tribal custom, the ultimate punishment appears to be meted out to at least 10 percent of the young men in each generation." | 20:25 |
| fenn | this doesn't square with the fact that conscientious objectors have higher IQ | 20:25 |
| kanzure | uh... okay. that's an interesting one i didn't consider. | 20:25 |
| kanzure | killing off the bottom 10% all the time | 20:26 |
| kanzure | geeze | 20:26 |
| fenn | the pak protector hypothesis | 20:26 |
| fenn | or the top 10% depending on how you look at it | 20:28 |
| fenn | .wik harrison bergeron | 20:28 |
| yoleaux | ""Harrison Bergeron" is a satirical and dystopian science-fiction short story written by Kurt Vonnegut and first published in October 1961. Originally published in The Magazine of Fantasy and Science Fiction, the story was republished in the author's Welcome to the Monkey House collection in 1968." — http://en.wikipedia.org/wiki/Harrison_Bergeron | 20:28 |
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| kanzure | killing the top 10% seems like a way to not get cognitive abilities | 20:29 |
| fenn | hence the brain shrinkage | 20:29 |
| kanzure | "When anthropologist Richard Jantz of the University of Tennessee measured the craniums of Americans of European and African descent from colonial times up to the late 20th century, he found that brain volume was once again moving upward" | 20:29 |
| kanzure | "Hawks, for instance, says the explanation is “mostly nutrition.” Jantz agrees but still thinks the trend has “an evolutionary component because the forces of natural selection have changed so radically in the last 200 years.” His theory: In earlier periods, when famine was more common, people with unusually large brains would have been at greater peril of starving to death because of gray matter’s prodigious energy ... | 20:29 |
| kanzure | ... requirements. But with the unprecedented abundance of food in more recent times, those selective forces have relaxed, reducing the evolutionary cost of a large brain." | 20:29 |
| kanzure | hmm. | 20:30 |
| fenn | that makes a lot more sense to me than the "let's kill joe" hypothesis | 20:30 |
| fenn | my understanding of new guinea killing is that it's a cycle of blood feuds and revenge | 20:32 |
| fenn | you're required to kill whoever killed someone who killed someone because someone killed someone... unti nobody remembers why they are even fighting | 20:32 |
| fenn | it's not like there is some council of elders who forces everyone to take some SAT test | 20:33 |
| kanzure | they were talking about aggression | 20:34 |
| kanzure | not intelligence | 20:34 |
| fenn | and the most aggressive tend to be more successful in that society | 20:34 |
| fenn | contrary to the hypothesis' prediction that group violence would lead to domestication | 20:34 |
| fenn | because it's inter-group violence not intra-group violence | 20:35 |
| kanzure | mutually-beneficial trade surely had some impact somewhere | 20:36 |
| fenn | sure, trade and aggression are not exclusive | 20:36 |
| kanzure | no was idle thought | 20:36 |
| kanzure | "no more than a million lines of code" should be a universal law for all software projects | 20:46 |
| kanzure | this may encourage more software projects though | 20:46 |
| kanzure | which might be okay | 20:46 |
| fenn | not necessarily a bad thing | 20:46 |
| fenn | unix philosophy | 20:47 |
| fenn | standardized interfaces | 20:47 |
| kanzure | i agree that there's a much in common with operating system and kernel design | 20:47 |
| catern | BSDs have more than a million lines of code | 20:47 |
| kanzure | with ai things | 20:47 |
| fenn | i have no idea about kernel design | 20:48 |
| kanzure | memory allocation, resource utilization, management | 20:48 |
| kanzure | isolation | 20:48 |
| catern | because they have all their stuff in the same repo, coreutils, libc, etc. | 20:48 |
| kanzure | i don't know, read tanenbaum you lazy bum | 20:48 |
| kanzure | or read linux source code, that's more productive | 20:48 |
| fenn | doesn't he say something like 'microkernels are the only thing that could possibly work" | 20:48 |
| kanzure | honestly i forget | 20:49 |
| kanzure | i was reading it when i was 13 which was my year of "pretend to learn everything" | 20:49 |
| fenn | https://en.wikipedia.org/wiki/Tanenbaum%E2%80%93Torvalds_debate | 20:49 |
| kanzure | hah that's such a unix professor photo | 20:50 |
| fenn | linus even thought microkernels were better | 20:51 |
| fenn | i guess with kernel modules we have something like a microkernel in practice | 20:51 |
| fenn | "The whole [MINIX] build, kernel + user-mode drivers and all the user-mode servers (125 compilations in all) takes about 5-10 seconds." | 20:59 |
| fenn | "It is a minimal but functional UNIX system with X, bash, pdksh, zsh, cc, gcc, perl, python, awk, emacs, vi, pine, ssh, ftp, the GNU tools and over 400 other programs." | 21:00 |
| fenn | this was written in 2005 ish | 21:01 |
| fenn | sometimes i forget that UNIX ran on 5MHz computers | 21:03 |
| fenn | The PDP-7 had a ~1-2 Mhz CPU | 21:04 |
| kragen | it wasn't until they bought a PDP-11 that they started writing Unix though | 21:05 |
| fenn | "In 1969, Ken Thompson wrote the first UNIX system in assembly language on a PDP-7, then named Unics" | 21:05 |
| * fenn mumbles something about "no philosophy" | 21:06 | |
| kragen | I'm not sure that really counts :) | 21:06 |
| kragen | I mean it had the same name as UNIX (modulo a spelling change) but it was different code in an incompatible language with incompatible interfaces | 21:07 |
| fenn | it wasn't unti 1973 that they rewrote it in C | 21:07 |
| kragen | but around 1971 they rewrote it in PDP-11 assembly | 21:07 |
| fenn | so what | 21:07 |
| kragen | that was still the time period when time_t incremented 60 times a second and the filesystem was nonhierarchical though | 21:08 |
| kragen | and instead of exiting, your program had to exec sh | 21:08 |
| kragen | because sh didn't fork to run your program | 21:09 |
| fenn | i guess i'm just surprised that there isn't something unix-equivalent for AVR class microcontrollers | 21:09 |
| kragen | and they didn't have stderr yet. in fact it was a while before they had pipes | 21:09 |
| kragen | AVR microcontrollers have a lot less RAM than the PDP-7 | 21:09 |
| kragen | less than half | 21:10 |
| kragen | in many cases a lot less than that | 21:10 |
| fenn | i'm not seeing stats on how much ram PDP-11 had | 21:11 |
| kragen | the PDP-7 shipped with 4096 18-bit words | 21:11 |
| kragen | (which should give you some clue of how far from C's worldview it was) | 21:12 |
| kragen | but I think the main obstacle is actually I/O devices rather than RAM — for the price of a decent keyboard, you can also have a 32-bit microprocessor running at hundreds or thousands of MHz | 21:12 |
| fenn | huh | 21:13 |
| kragen | however if you're interested | 21:13 |
| fenn | for the price of an arduino you can have an android tablet with touchscreen, wifi, GPS, battery.. | 21:13 |
| kragen | you can? | 21:13 |
| kragen | isn't an Arduino like US$10? | 21:13 |
| fenn | something like that | 21:14 |
| fenn | er, no the arduino is like $30 | 21:14 |
| lichen | 10 if you build it yourself | 21:14 |
| fenn | $2 if you build it yourself | 21:14 |
| kragen | the KnightOS people are putting together a Unix-like system for Z80 | 21:14 |
| lichen | 30 dollar tablet is still rather unusual | 21:14 |
| kragen | because TI calculators are still based on Z80s | 21:14 |
| kanzure | an android tablet is like $9 | 21:14 |
| fenn | kanzure are you sure about that | 21:15 |
| kanzure | you're my source | 21:15 |
| kragen | and they have enough RAM to support writing programs in high-level languages, which Arduinos don't really | 21:15 |
| kragen | also | 21:15 |
| kragen | monitor and keyboard and battery | 21:15 |
| fenn | the thing on aliexpress was a scam, not an actual viable commercial product | 21:15 |
| kragen | they cost more than Android tablets though | 21:15 |
| kragen | there are actual viable commercial Android tablets for US$50 though | 21:15 |
| kragen | still | 21:15 |
| kragen | an Arduino Nano costs about US$10 | 21:16 |
| kragen | rossum.posterous had some interesting stuff about hacking cellphone displays | 21:16 |
| kragen | they are very cheap indeed, and much more widely available than Arduinos | 21:16 |
| kragen | (which makes me curse their benighted lack of programmability) | 21:17 |
| kanzure | are there any software neural networks that have been benchmarked as "better" than the real deal? | 21:17 |
| kanzure | like some simple neural task that a little worm does or something | 21:17 |
| fenn | better? | 21:17 |
| kanzure | faster response times? | 21:18 |
| fenn | more wormy? | 21:18 |
| kragen | probably "better" in this case would be "more robust to crisis situations" | 21:18 |
| kanzure | "does not get served its own ass by the biological version" | 21:19 |
| kanzure | "is not a pathetic joke compared to biological implementation" | 21:19 |
| fenn | software latency is more related to i/o cruft in the x86 peripheral design from 1980's | 21:19 |
| fenn | but that's still on the order of a millisecond or two | 21:19 |
| kragen | like, higher likelihood of the worm surviving when it gets swallowed by a larger animal, or it snows, or the puddle dries up | 21:19 |
| fenn | what's a worm's reaction time? | 21:19 |
| kragen | .g worm reaction time | 21:19 |
| yoleaux | http://www.cis.upenn.edu/~cse331/lectures/CSE331-16.pdf | 21:19 |
| kanzure | where are the openworm people argh | 21:20 |
| fenn | .g dear lazyweb where are the openworm people | 21:20 |
| yoleaux | http://www.openworm.org/get_involved.html | 21:20 |
| kragen | false hit at upenn | 21:20 |
| kragen | fenn: I've tried persuading the KnightOS people that maybe CP/M compilers and assemblers and things could be useful | 21:21 |
| kragen | but they point out that the TI's memory layout is incompatible | 21:21 |
| kragen | I think they'd probably be more convinced by a working demonstration than by some random dude bloviating about it | 21:22 |
| kragen | they're hoping to get an interpretive language up and running soon | 21:22 |
| kragen | "kpy" | 21:22 |
| fenn | oh yeah people still need to buy TI-8X for their math class because it sucks and it also has graphing capability | 21:22 |
| kragen | yes | 21:23 |
| kragen | there was a related mp3 player called s1mp3 a few years back | 21:23 |
| kragen | Z80 with a giant glob of DSP on the side | 21:23 |
| fenn | i remember running a grayscale wolfenstein clone on mine | 21:23 |
| kragen | but nobody buys MP3 players any more | 21:23 |
| fenn | was going to build an IR transciever to chat in class but nobody else cared | 21:23 |
| kragen | like seriously I was just in a bad neighborhood where an old man robbed a young woman in front of me | 21:24 |
| kragen | and there was this monstrously fat guy sitting out on the sidewalk with his family with a hand-lettered sign selling sausage sandwiches | 21:24 |
| kragen | cooked there on the sidewalk on a charcoal grill | 21:24 |
| fenn | and, uh, what? | 21:25 |
| * fenn is not following this conversation all of a sudden | 21:25 | |
| kragen | and he was playing his music on a Samsung Android smartphone with a cracked faceplate | 21:25 |
| kragen | plugged into his stereo | 21:25 |
| kragen | that's what I mean by "nobody buys MP3 players any more" | 21:25 |
| fenn | i thought you were talking about some mp3 software for the ti-8x calculators | 21:27 |
| kragen | so there aren't that many consumer products where you have an 8-bit micro with a screen any more | 21:27 |
| kragen | no, I was talking about the s1mp3 | 21:27 |
| kragen | maybe some feature phones | 21:27 |
| kragen | but those are probably using cortex-m0 these days | 21:27 |
| kragen | I dissected a DVD player last year | 21:28 |
| kragen | turned out its main monster ASIC was an 8051 | 21:28 |
| kragen | with like 200 pins hooked up to DSP glommed onto the side of the 8051 | 21:28 |
| kragen | and a megabyte or two of program-counter address space | 21:28 |
| kragen | but 8051 instruction set | 21:28 |
| kragen | but it was an old one | 21:29 |
| fenn | not at all surprised | 21:29 |
| kragen | to me that's a platform it would be interesting to have a reasonable OS for | 21:29 |
| fenn | why is that interesting | 21:29 |
| fenn | you might as well write an OS for your hard drive's controller | 21:30 |
| kragen | yeah, hard drive controllers are also pretty interesting | 21:30 |
| kragen | but they don't have video output | 21:30 |
| fenn | false economy detected | 21:31 |
| kragen | it's not about economy | 21:31 |
| kragen | it's about autonomy | 21:31 |
| fenn | you want autonomy, don't buy a DVD player! | 21:31 |
| fenn | wtf | 21:31 |
| kragen | what am I going to generate my Bitcoin keys on? | 21:31 |
| fenn | an abacus | 21:31 |
| kragen | clearly | 21:32 |
| fenn | you can write an os for an arbitrarily obscure platform | 21:32 |
| kragen | you can waste an arbitrarily large amount of time doing it too | 21:32 |
| fenn | unix for AVR is interesting because you can do "internet of things" program changes without having to recompile and flash new binary code to the device | 21:34 |
| kragen | I note that even Contiki doesn't support the 8051 | 21:34 |
| kragen | well, if that's what you want, use Contoki | 21:35 |
| kragen | Contiki | 21:35 |
| kragen | it does support the AVR | 21:35 |
| kragen | as well as every other common "internet of things" CPU | 21:35 |
| kragen | plus the 6502 | 21:35 |
| fenn | also it would be nice to have a DIY processor capable of running modern software, or at least software designed with modern concepts | 21:36 |
| kragen | what do you mean? | 21:36 |
| fenn | where DIY = silicon fab in a garage | 21:36 |
| kragen | you could probably do a 6502 or a MuP21 in your garage | 21:37 |
| fenn | where do you get 30kB of RAM from | 21:37 |
| kragen | (actually TinyOS also does a bunch of program upgrade things, which might be an option too) | 21:37 |
| kragen | yeah, that's probably going to be a problem | 21:37 |
| fenn | i dont really mean bootloader tricks | 21:38 |
| kragen | I wonder if you could use focused ion beam etching instead of masks | 21:38 |
| fenn | with FIB you can just etch a zillion transistors and have a big modern cpu | 21:38 |
| fenn | i'm talking about lithographic masks in the micron range | 21:38 |
| kragen | can you do FIB in your garage? | 21:38 |
| fenn | not unless you have a FIB to begin with | 21:38 |
| fenn | but yes | 21:39 |
| kragen | what's hard about building one? | 21:39 |
| kragen | (sort of like the injection-molding to FDM shift: if you only need one of something, making masks/molds for it may not be economical) | 21:39 |
| fenn | i don't know; nothing seems particularly difficult about it | 21:39 |
| kragen | I have this very naïve idea about FIB | 21:39 |
| kragen | which is that it's basically a scanning electron microscope with nuclei instead of electrons | 21:39 |
| kragen | on the other hand, Jeri didn't build her SEM herself | 21:40 |
| kragen | she bought it | 21:40 |
| fenn | it takes a certain skillset to build a SEM that doesn't seem to exist in the sort of people that would want to build a computer chip | 21:40 |
| fenn | also there's no reason to build when you could just buy one | 21:41 |
| * fenn shrugs | 21:41 | |
| fenn | there's also digital mask projection with DLP | 21:42 |
| fenn | you don't need to actually print a mask to do lithography | 21:42 |
| kragen | that's an interesting idea | 21:42 |
| kragen | are there people doing that at micron scale? | 21:42 |
| fenn | yes | 21:42 |
| fenn | the whole setup is a lot cheaper and more compact than FIB | 21:43 |
| kragen | neat, who? what are they making? | 21:43 |
| fenn | test patterns | 21:43 |
| kragen | yeah, it seems like it would be (if it works at all) | 21:43 |
| kragen | test patterns? so they don't have it working very well yet? | 21:43 |
| fenn | there's just no huge push for it in the first place | 21:43 |
| fenn | how the fuck does kanzure know what's a category and what's just a random file that happens to be a directory | 21:45 |
| fenn | kragen: some papers in here http://diyhpl.us/~bryan/papers2/optics/photolithography/ | 21:45 |
| fenn | the contiki GUI is ridiculous | 21:51 |
| fenn | any serious interface could be realized with javascript and json | 21:52 |
| dingo | or curses :) | 21:52 |
| fenn | not really a GUI but fine | 21:52 |
| dingo | http://jeffquast.com/blessed-weather.png | 21:53 |
| dingo | who says that isn't graphical :) | 21:53 |
| fenn | reimplementing font kerning just seems like a waste of resources on such a resource constrained system (the intended use case) | 21:53 |
| fenn | dingo: why not just use existing icons | 21:54 |
| fenn | none of these microcontroller things say anything about cryptography | 21:59 |
| fenn | that would seem to be important for something controlling physical hardware and connected to a network | 21:59 |
| fenn | or even just a thing connected to a network (a vector for further attacks on something else) | 22:00 |
| fenn | protocol buffers would probably work well for interfaces to humans and machines | 22:04 |
| fenn | i wonder how much space a .js file to read a protocol buffer stream would take up | 22:04 |
| dingo | reminds me of http://phrack.org/issues/60/14.html#article | 22:12 |
| fenn | i am sitting at a traffic light; six days later i have a working implementation to make the light change color | 22:15 |
| fenn | mission accomplished? | 22:15 |
| fenn | bytebuffer.js is <5kB with comments and full length variable names | 22:15 |
| fenn | this seems reasonable to store on in microcontroller flash | 22:16 |
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| fenn | also you can probably do some crude compression | 22:17 |
| fenn | with gzip it's 1.5kB | 22:18 |
| fenn | this can't be right | 22:20 |
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| fenn | the point of all the being that it's faster to spew out binary data than json | 22:26 |
| fenn | endpoint of said data being a human looking at a webpage displaying data from an embedded sensor | 22:27 |
| nmz787 | fenn: some microcontrollers have crypto engines in them | 22:31 |
| nmz787 | http://www.nxp.com/documents/user_manual/UM10503.pdf | 22:34 |
| nmz787 | see from pg 51 and pg 93 | 22:37 |
| fenn | BeRTOS has an implementation of MD2 :\ | 22:37 |
| nmz787 | AES 128-bit there | 22:37 |
| fenn | i don't doubt that there exists unnumerable hardware crypto engines | 22:38 |
| fenn | but i'd want something simple and auditable | 22:38 |
| fenn | did you seriously just link to a 1400 page datasheet | 22:38 |
| nmz787 | yeah, it's pretty much what you have to refer to for turning features on | 22:39 |
| nmz787 | you could fuzz it | 22:40 |
| nmz787 | I can't actually tell if they're selling the version with that crypto engine | 22:40 |
| fenn | fuzzing doesn't tell you if there are backdoors | 22:40 |
| nmz787 | you could decap and slice and view | 22:40 |
| nmz787 | but that would take equip | 22:41 |
| fenn | how would you process the images, assuming you could get them | 22:41 |
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| nmz787 | you'd need elemental map data or maybe crystallographic orientation | 22:41 |
| nmz787 | that you could determine the doping with | 22:42 |
| fenn | you can guess that | 22:42 |
| fenn | but you'd still need some kind of OCR to get a netlist | 22:42 |
| nmz787 | yeah so then you'd need to create some rtl or something, vhdl, from that | 22:42 |
| fenn | right | 22:42 |
| fenn | easier to just do it in software | 22:42 |
| nmz787 | yeah with good contrast you might automate it | 22:42 |
| nmz787 | or the 'right' cv algo | 22:43 |
| fenn | i mean, easier to do the whole cryptosystem in software so you can audit the code instead of messing around with acid and chips and microscopes and computer vision programs | 22:43 |
| nmz787 | they do everything but the actually layer-to-layer mapping automatically/assisted today | 22:43 |
| nmz787 | yeah but since it is closed source you need to back-annotate from the physical chip | 22:44 |
| fenn | what is closed source | 22:44 |
| nmz787 | e.g. (that linked processor) | 22:45 |
| nmz787 | but anything pretty much | 22:45 |
| nmz787 | closed or licensed away | 22:45 |
| fenn | i think that AES-128 stuff is just to protect the object code from peeking | 22:47 |
| fenn | or 'trusted computing' stuff | 22:48 |
| fenn | since it's only talking about valid boot images | 22:48 |
| fenn | oo it passes the NIST random number generator standard (EXCELLENT!!!) | 22:49 |
| nmz787 | seemed to say you could use it via an API and a software key, or a randomly generated key | 22:49 |
| nmz787 | in addition to the hardware key for disk transactions | 22:49 |
| nmz787 | but yeah I couldn't tell if it was just for boot, or for all disk transactions | 22:50 |
| nmz787 | yay I just got a GIMP Python plugin to save layers as BMPs! | 22:50 |
| nmz787 | now I can convert them to FIB patters | 22:51 |
| fenn | why did you settle on gimp instead of inkscape or just raw svg? | 22:51 |
| nmz787 | GIMP is easier to use than inkscape for me... I remember having problems defining hard edges with it when exporting to SVG (I think it was dithering, maybe?) (or maybe that was on export to BMP from SVG) | 22:53 |
| nmz787 | but GIMP layers seem pretty reasonable, they can remain paths or whatever | 22:53 |
| nmz787 | and I believe there is a way to generate them via python programmatically | 22:53 |
| nmz787 | the FIB pattern is essentially a sparse BMP | 22:54 |
| fenn | oh. svg uses a center-aligned stroke so a 1px line ends up being 2px wide at 50% intensity | 22:54 |
| fenn | you have to shift everything by half a pixel | 22:54 |
| nmz787 | so I will just look through the 1024x1024 image and add pixels that are >0 | 22:54 |
| nmz787 | err, 4096x4096 | 22:55 |
| nmz787 | with 1024x1024 pix avail to write | 22:55 |
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| fenn | hrm i guess NSA-backdoored encryption is better than no encryption | 22:56 |
| fenn | until everyone else figures out the backdoor | 22:57 |
| * fenn sulks and watches cartoons instead | 22:58 | |
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| fenn | .title http://www.meetearl.com/ | 23:25 |
| yoleaux | Earl - Backcountry Survival Tablet | 23:26 |
| fenn | it's an e-ink solar-powered waterproof gps walkie-talkie thing | 23:26 |
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| -!- ThomasEgi [~thomas@panda3d/ThomasEgi] has quit [Remote host closed the connection] | 23:47 | |
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