• Sci-Hub’s post-2013 architecture: after a LibGen disk crash erased 40 k papers, the project crowdfunded new storage, spun up an independent 21 M-paper mirror, rewrote the crawler to auto-download via rotating proxies, and split the corpus into Sci-Hub-only mirrors decoupled from LibGen.  

• Version control for physical artifacts: participants sketched a NixOS/SKDB-style declarative package graph for hardware, mooted JSON biology protocols (Transcriptic & Opentrons), CAD versioning, and on-demand manufacturing APIs such as Plethora and AWS-style flexible cells.  

• Brain-backup storage math: raw connectome at 89 B neurons × 10 k synapses ≈ 1 PB (~$82 k disks); Russell Hanson’s BrainBackups slides compress this to ~500 TB, but caution that adding synaptic weights, neurotransmitter levels, receptor densities, and methylation could multiply capacity needs.  

• “Physical build language” demos: autonomous robot-arm self-assembly from a parts pile, Lego Mindstorms builds, and DNA-origami polyhedral-mesh construction were proposed as tractable test cases for a universal manufacturing description language.  

• Analog computing revival: a De Gruyter blog post and a newly released (and pricey) analog-computer textbook were flagged as resources for exploring non-digital computation paradigms.