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@peterweyand
I think of the hardware CPU as an unoptimized bottleneck. It's the issue that drove graphics to being on specially tuned cards that ALSO make them more suited to the math that makes them useful for crypto mining as seen in the following video by Viva La Dirt League:
AI is "expensive," and a "General CPU" isn't necessarily tuned to AI connections from data-sets cached in relevant memory handily accessible. I *really* don't know the particulars, but I would hazard a guess that these are issues similar to the push for a Graphics "CPU card." I just don't know if the cost would produce the obvious benefits that would push people into buying something like that. Graphics are pretty obvious. AI in a game would be far too subtle. :(
