Could we use thermopiles to efficiently reuse heat generated from computer hardware and cool components down? If not, why?

Question

Could we use thermopiles to efficiently reuse heat generated from computer hardware and cool components down? If not, why?

In: Engineering

Answer 1

ELI5: you have a hundred pennies. Anything you do costs two pennies, one to me, one to the your friend. No matter what. I will always get my pennies. Efficiency, is your friend getting three pennies, and I still get one. No matter how efficient the system, eventually you give me all the pennies.

My name? Entropy.