LocalLLaMA

From what I've read, top AI labs hire for proven aptitude. PhDs in Physics, SWEs that built impressive cutting-edge things, people already deep in ML research.

The field is so new that people like him can catch up in a few months and really know their stuff. They believe in talent density, fewer highly capable people. Although that might change if they want to grow to be giant tech cos - someone has to do the grunt work.