- A new eLife paper (https://elifesciences.org/articles/36133) was shared, highlighting that generating a single neuronal action-potential consumes ~2,000× more energy than transmitting an equivalent hormonal signal, underscoring the metabolic cost of electrical signaling in the brain (Perge et al., 2012; Sterling & Laughlin, 2015).

- Bryan Bishop added transcripts from the 2018 “Building on Bitcoin” conference to the DIYH+ wiki, specifically covering the libbitcoin talk; the commit is viewable at https://secure.diyhpl.us/cgit/diyhpluswiki/commit/?id=d7ff214b.

- A 1973 Postgraduate Medical Journal case report (PMC2495396) on a 382-day therapeutic fast was circulated, offering historical data on extreme human caloric restriction and metabolic adaptation.

- Discussion referenced the 1990s animated series “Exosquad” as an under-appreciated depiction of future warfare and exoskeleton technology; the conversation was sparked by a War Is Boring article (http://warisboring.com/exosquad-is-the-best-war-animation-you-probably-never-heard-of/).

- A brief, unsolicited Bitcoin donation appeal—purportedly for a child’s cancer treatment—was posted under the nick “kanzure_” and quickly identified as likely spam.