That's an obviously wrong statement: at some point of power consumption, you've burned the earth to ashes, and there's no returns on compute that can pay that off.
The economics of efficiency come in. You can say it is lack of imagination and all that, but the graveyard of bitcoin miners would disagree. Yes we might come up with some novel usage for computation that would somehow exceed the power costs, but like, that is not an easy problem to do even at some very low margin rate. CPU and computation is cheap and linear. LLMs are one of the few things that produce value for all that computation in recent times outside of the normal workloads we have always been progressing (e.g. serving sites, etc.).
