- A new arXiv preprint (2104.01770) claims observation of superluminal signaling using terahertz pulses, a result that would upend conventional physics if validated.  
- A Nature Neuroscience paper (s41593-020-00717-0) maps the epigenomic and transcriptomic changes that occur in hippocampal “engram” neurons during both memory formation and recall, offering molecular targets for cognitive enhancement.  
- Participants discussed a documented human self-experiment in which individuals replicated rodent plasma-dilution rejuvenation protocols, replacing roughly half their blood plasma; the write-up is archived at FightAging.org.  
- A link to a free SolidWorks resource (backworks.info) was shared, lowering the barrier to mechanical CAD for open-source hardware projects.  
- An oral-history interview with ENIAC co-inventor J. Presper Eckert (hdl.handle.net/11299/107275) was highlighted, along with debate over von Neumann’s role in placing the EDVAC patent in the public domain to prevent commercial lock-up.  
- Conversation turned to the decline of “scientist-celebrities,” attributing past visibility to deliberate self-promotion rather than any golden age of public science literacy.