See this [1] for how he comes up with numbers. I think he says a lot of things without understanding and not many serious participants in the area takes him seriously.

[1] https://x.com/binarybits/status/2034376359909130249

Feel free to point out where the numbers are wrong in this article. If you're right about his ability to math, then you'll have no problem identifying concrete aspects of this piece that are wrong.