It doesn't matter if the consumer market is 4T, if the AI market is 60T!
Most people would pick up both.
These economic proclamations don’t seem to make sense, when applied to different contexts — which suggests what you’re saying might be folk wisdom rather than sound theory (and greatly over simplifying the problem).
You’re also discounting ecosystem effects — gaming GPUs driving demand for datacenter and workstation GPUs as hobbyist experimentation turns into industrial usage. We don’t know what would happen if nVidia stopped suppressing the GPU market, because it’s never been tried — nVidia has always viciously undercut their own grassroots.
No, it’s more like there’s a massive pile of both $20s and $100s on the ground. You wouldn’t waste time running between the two, you’d focus on the $100s
if you're within reach of both, then it's not a choice, and there's no opportunity cost in picking just one - you'd be taking both.
If not within reach of both but just one, and you picking one up means someone else might pick up the other, then which would you choose? The other is then by definition, the opportunity cost.
A dollar?