A former Facebook engineer just wrote an AI by hand, all 9,909 numbers of it, and it runs a working desktop computer inside a browser tab. He pulled it off with a compiler he built called Handwired. You feed it ordinary code, and it spits out the exact numbers an AI brain would need to run that code, so every one of them already knows its job before any training happens. That's Cheng Lou, who worked on React's core team at Facebook, and the basic move is simple enough to check on your phone's…