- NSF-funded researchers demonstrated two-way communication with lucid dreamers, allowing sleeping subjects to answer audio questions posed by experimenters—raising questions about the depth of sleep and the reliability of EEG-verified unconsciousness.  
- A participant reported anecdotal evidence that some people can verbally respond to questions while technically asleep, without EEG confirmation, highlighting the need for better sleep-stage monitoring in such experiments.  
- The mortality of space explorers was discussed via a linked IntechOpen chapter, underscoring long-term health risks of microgravity and prompting debate on why artificial-gravity solutions remain underutilized in mission planning.  
- Channel members argued that generating artificial gravity is “trivial” in principle—simply rotating two tethered modules—yet questioned why NASA has not systematically adopted such architectures for crewed missions.  
- Bitcoin’s resilience was illustrated by sharing the “Bitcoin Obituaries” page, which catalogs 350+ premature declarations of the currency’s death, including a recent entry by Nassim Taleb.  
- DIYhpluswiki commits added transcripts and videos from Scaling Bitcoin Tokyo 2018 and Stanford 2017, focusing on script design and efficient blockchain usage, expanding the open archive of technical talks.  
- Lego-Duplo compatibility was noted as a practical design feature that simplifies purchasing decisions for modular construction toys, although interlocking strength between the two systems was reported as sub-optimal.