# Key Points from Transhumanist Technology Discussion

• Participants discussed PCB design principles, emphasizing that 45-degree angles should be used instead of 90-degree corners in traces to prevent electromigration and current density issues that can damage circuit boards.

• For personal fabrication labs, recommended basic equipment included 3D printers, laser cutters, and CNC milling machines, with resources like "typical fablab inventory" at gnusha.org/skdb and the Makerspace Playbook suggested for further guidance.

• The toner transfer technique using a laser printer and clothes iron was recommended as a more practical approach for DIY PCB fabrication compared to milling, which was described as appropriate only for specialized high-frequency applications.

• A novel neural stimulation technology using pulsed, low-energy infrared laser light was discussed as offering damage-free stimulation with improved spatial selectivity in the brain and cochlea compared to traditional electrical methods.

• For DIY biology labs, recommended equipment included PCR machines, centrifuges, heat blocks, gel boxes, pipettors, autoclaves, and incubators, with emphasis on first understanding the purpose of tools through educational materials.

• Advanced fabrication technology was discussed, including a Focused Ion Beam (FIB) device capable of 10-30nm resolution that uses gallium ions for extremely fine etching, with an example given of an entire Bible text etched onto a 1-inch square silicon surface.