- **Ultrasound experimentation**: Channel members outlined a plan to build a 1–2 MHz variable-frequency ultrasound source using surplus medical transducers (Craigslist/Alibaba 2 MHz units) driven by LC-filtered function generators and a two-transducer TX/RX setup to verify output.

- **Knowledge-management at scale**: Inspired by Leibniz’s 40,000 letters, participants debated lightweight tooling—wiki pages, mind-maps, Gmail tags, and spam-filter-style “smart folders”—to track 700+ daily emails and route topics to the right contacts without losing context.

- **Open-source constructive-solid-geometry (CSG) tools**: The group surveyed Python/Perl libraries for 3-D CSG (sphere minus pyramid, etc.), landing on Blender’s Python API, BRL-CAD, and the OpenCSG project as the most complete open options, while noting smaller viewers like Draft (CPAN) and pythonmeshviewer lack full CSG.

- **Export-control reality check**: A Slashdot claim that 6-axis CNC mills are ITAR-restricted was countered with the observation that 5-axis machines already achieve equivalent results and that hexapods inherently provide six degrees of freedom.

- **Neurobiological definition of “decision”**: One participant argued that pre-conscious fMRI blood-flow patterns do not constitute a “decision,” while another proposed that some discrete neural “phase change” must still occur, highlighting an unresolved debate on measurable agency.

- **Identity & dimensional grounding**: A brief mention of a “deconstructed identity module” project with Steve aimed at anchoring identity or dimensional units in real-time sensor data for industrial control systems.

- **Interactive N-dimensional geometry interface**: Discussion of using zero-derivatives of implicit surface equations to extract landmark points for union/intersection operations, and envisioning a real-time slider interface that continuously morphs composite 3-D shapes (pyramids, spheres, cubes).

- **Transhumanist reading list & memes**: Links shared include Eliezer Yudkowsky’s “Three Major Singularity Schools,” the tongue-in-cheek “meat-on-a-stick” cloning wiki, and a query about an essay on “three (or five) paths of human development” once printed in Ghost in the Shell and hosted on betterhumans.com.