Haha — this was a fun day! It's honestly surprising how robust the RP2350 was under such extreme experimentation. Mike's write-up walks through pushing the core voltages far beyond stock limits and dry-ice cooling to see what the silicon could handle.
Credit where it's due: Mike is a wizard. He's been involved in some of our more adventurous tinkering, and his input on the more complex areas of our product software has been invaluable. Check out his GitHub for some really interesting projects: https://github.com/MichaelBell