• A core privacy debate questioned whether “all digitized information will inevitably become public,” with counter-arguments invoking perfect-forward-secrecy encryption as a technical safeguard against the loss of freedom that total transparency would entail.  

• BioViva CEO Liz Parrish’s self-administered AAV gene-therapy (telomerase + follistatin vectors) was dissected: participants cited a 2012 mouse study (PMID 22585399) showing lifespan extension without increased cancer and debated the credibility of both the company and the percentage of cells actually transduced.  

• Practical DIY treatment for seasonal-affective disorder compared T5 high-output fluorescent arrays (~15 % efficacy, <$0.003 / lumen) favorably against custom high-power LED builds and HMI metal-halide lamps, which were rejected for explosion and toxicity risks.  

• The open MRI dataset “dcunited001/mri-scans” on GitHub was loaded into 3-D Slicer, demonstrating community use of freely available neuro-imaging data for exploration and analysis.  

• A new self-replicating 3-D printer design, “Dollo” (GitHub: benbeezy/dollo), prints most of its own plastic parts in <18 h and <1 kg filament, prompting discussion of trade-offs between vitamin BOM cost and mechanical robustness versus earlier RepRap Snappy and ToyREP designs.  

• Vancouver’s transit “Compass” cards (MIFARE DESFire EV1 NFC) were probed for their 3DES-encrypted personal-data protocol, with a call for reverse-engineering experience.  

• Cryonics optimism held that even severe brain damage or mental illness could be reversed post-revival through structural repair or generic-neuron replacement, provided the person is not “information-theoretically dead.”