- A draft slide deck titled “scaling-review-draft” (versions v2–v4-004) was iteratively refined for an upcoming keynote; it surveys Bitcoin scalability proposals including Merkle trees, Merkle mountain ranges, Merklized abstract syntax trees, simplified payment verification (SPV), Lightning Network, fraud proofs, libsnark/zk-SNARKs, and MAX_BLOCK_SIZE debates.  
- Discussion surfaced practical presentation advice: enlarge tiny URLs for back-row legibility, consistently place links at slide bottoms, spell-check terms (“indiscriminate,” “succinct”), and add a final slide with a master link to the deck itself.  
- A new data structure was jokingly dubbed “Merkle tears,” highlighting the community’s loose spelling variants (“merkleized” vs. “merklized”).  
- The Glaucus Project—an ultra-low-budget underwater habitat made from a repurposed life-support pod—was linked via a BBC article, prompting side commentary on saturation diving hazards, underwater welding, and the longevity of physical habitats versus ephemeral VR tours.  
- Programmable/polymagnets (correlated magnetics) were introduced with links to Polymagnet.com, a Wikipedia entry, and a CMR demo video, alongside an Arduino forum thread on controllable magnetic arrays.  
- An Epicenter Bitcoin interview transcript with Adam Back on scalability and block-size politics was posted to the diyhplus wiki for archival reference.  
- Ancestry.com’s use of customer DNA for ad targeting was flagged via a Freedom-to-Tinker blog post, underscoring privacy concerns in consumer genomics.  
- Technical tangents included acousto-optic modulator (AOM) lasers as an alternative to mirror galvanometers for laser displays, with pointers to MIT papers and surplus electro-optics vendors.