- A discussion on ultra-low-power environmental sensors highlighted the trade-off between open hardware and long battery life, with candidates such as ESP8266, Ruuvi tags, WirelessTag, UbiBot WS1, Samotech Zigbee sensors, and SensorPush being compared; Ruuvi was noted as cloud-locked.  
- The ideal target spec was 6–12 months of battery life on a single charge while avoiding dependence on a manufacturer-controlled cloud service.  
- A pre-print on radiotrophic fungi (bioRxiv 2020.07.16.205534v6) was shared, pointing to organisms that harvest energy from ionizing radiation as a potential bio-hacking or energy-harvesting curiosity.  
- Gametogen.com, a new venture whose branding suggests gamete-related rejuvenation or life-extension claims, was linked; participants mocked its accompanying graph implying historical human lifespans ended abruptly at ~22 years.  
- A technical security note circulated: Intezer’s analysis of the “SysJoker” multi-platform backdoor was flagged as relevant reading for anyone building open-source health or BCI devices that must resist state-level malware.