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From: Gavin Andresen <gavinandresen@gmail•com>
To: Adam Back <adam@cypherspace•org>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Long-term mining incentives
Date: Wed, 13 May 2015 11:41:16 -0400	[thread overview]
Message-ID: <CABsx9T0K3xQUSY26VYoJzyAGkqCfRL_xnkQUrv7M-HpOvpio5w@mail.gmail.com> (raw)
In-Reply-To: <CALqxMTGebNMARgps9mqxDSOw0cX9aeZZim82g8a4vE6sCPHq-g@mail.gmail.com>

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On Tue, May 12, 2015 at 7:48 PM, Adam Back <adam@cypherspace•org> wrote:

> I think its fair to say no one knows how to make a consensus that
> works in a decentralised fashion that doesnt weaken the bitcoin
> security model without proof-of-work for now.
>

Yes.


> I am presuming Gavin is just saying in the context of not pre-judging
> the future that maybe in the far future another innovation might be
> found (or alternatively maybe its not mathematically possible).
>

Yes... or an alternative might be found that weakens the Bitcoin security
model by a small enough amount that it either doesn't matter or the
weakening is vastly overwhelmed by some other benefit.

I'm influenced by the way the Internet works; packets addressed to
74.125.226.67 reliably get to Google through a very decentralized system
that I'll freely admit I don't understand. Yes, a determined attacker can
re-route packets, but layers of security on top means re-routing packets
isn't enough to pull off profitable attacks.

I think Bitcoin's proof-of-work might evolve in a similar way. Yes, you
might be able to 51% attack the POW, but layers of security on top of POW
will mean that won't be enough to pull off profitable attacks.


-- 
--
Gavin Andresen

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  reply	other threads:[~2015-05-13 15:41 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-11 16:28 Thomas Voegtlin
2015-05-11 16:52 ` insecurity
2015-05-11 17:29   ` Gavin Andresen
2015-05-12 12:35     ` Thomas Voegtlin
     [not found]       ` <CABsx9T1h7p3hDr7ty43uxsYs-oNRpndzg=dowST2tXtogxRm2g@mail.gmail.com>
     [not found]         ` <555210AF.3090705@electrum.org>
2015-05-12 16:10           ` Gavin Andresen
2015-05-12 16:21             ` Dave Hudson
2015-05-12 21:24             ` Pedro Worcel
2015-05-12 23:48               ` Adam Back
2015-05-13 15:41                 ` Gavin Andresen [this message]
2015-05-13 20:05                   ` Pedro Worcel
2015-05-13  9:49             ` Thomas Voegtlin
2015-05-13 10:14               ` Tier Nolan
2015-05-13 10:31                 ` Alex Mizrahi
2015-05-13 11:29                   ` Tier Nolan
2015-05-13 12:26                     ` Alex Mizrahi
2015-05-13 13:24                       ` Gavin
2015-05-13 13:28                       ` Tier Nolan
2015-05-13 14:26                         ` Alex Mizrahi
2015-05-13 23:46                   ` Jorge Timón
2015-05-14  0:11     ` Jorge Timón
2015-05-14  0:48       ` Aaron Voisine
2015-05-14  0:58         ` Pieter Wuille
2015-05-14  1:13           ` Aaron Voisine
2015-05-14  1:19             ` Pieter Wuille
2015-05-14  1:31               ` Aaron Voisine
2015-05-14  2:34                 ` Aaron Voisine
2015-05-16 20:35                 ` Owen Gunden
2015-05-16 22:18                   ` Tom Harding
2015-05-17  1:08                   ` Aaron Voisine
2015-05-14  0:44 ` Melvin Carvalho
2015-05-25 18:31 ` Mike Hearn
2015-05-26 18:47   ` Thomas Voegtlin
2015-05-27 21:59   ` Mike Hearn
2015-05-27 22:22     ` Gregory Maxwell
2015-05-28 10:30       ` Mike Hearn
2015-05-13 17:49 Damian Gomez
2015-05-18  2:29 Michael Jensen

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