- Discussion of why functional purity hasn’t become mainstream: participants argue that C’s legacy and the slow maturation of languages with strong purity guarantees, combined with market pressures, have limited adoption.  
- Hardware-compute sharing idea: lsneff laments the inability to seamlessly “borrow” CPU/GPU cycles from a desktop over a laptop link; L29Ah notes PCIe-attached GPUs or InfiniBand are the closest practical options, but network latency makes general CPU pooling hard without NUMA-aware software.  
- Haskell advocacy and tooling: juri_ wants to integrate work into GHC and sees Haskell’s strength as composing algorithms rather than managing code volume; nested-record ergonomics remain unsolved except by “simple functions and flat namespaces.”  
- seL4 on Raspberry Pi 3: srk links a CSIRO blog post showing the formally verified microkernel running on low-cost ARM hardware, expanding open-source secure-OS options for embedded and bio-hacking projects.  
- Bitcoin block-height messaging: ffranr highlights the NYTimes headline embedded in the coinbase of the last 12.5 BTC block (630,000), and foxp2 anticipates a historic message for block 839,999.  
- SHA-256 pedagogy: ffranr shares an animated step-by-step visualization of the SHA-256 compression function at https://github.com/in3rsha/sha256-animation.  
- Age-reversal research: lsneff posts Josh Mitteldorf’s blog entry “Age Reduction Breakthrough,” flagged as a potentially significant longevity update.