It's very hard to respond to a comment like that, since there's no specifics, just a plain disagreement.
On my side, I would like to point that the today HN thread ([1]) that discusses a paper GameNGen ([2]) that runs Doom with diffusion models was trained on TPUs.
I don't see a dependency on NVIDIA there.
If there's a more specific rebuttal to my original statement, please, don't hesitate to state it.
