[popey456963]

The article ends by saying "By the theorem, Koomey's law has the potential to be valid for about 125 years". One imagines that it could continue long after even this however with further ways of computations being discovered.

[tgb]

Reversible computation (which that 125 year number refers to) has to be done very slowly. There might be some applications where that would still be relevant, but it's pretty clear this trend don't last even until the 2048 mark, let alone for another 125 years and beyond.

The Feynman lectures on computation have some good sections on reversible computation that I would recommend.