Idk about that. There are many uses for compute units beside training. Inference may still be possible. But also, I'm just remembering that time the PS3 was used as a super computer. If general purpose compute hardware is subsidized, I think gamers won't be able to get it and instead it will get to the hands of corporations or research institutes for cheap compute hardware. Why spend 1k to get a sub-par machine when you can get the same one with say $500 (if valve subsidize it)