Yuli Ban's post on efficiency a while ago got me thinking, so I guess one good thing came out of that thread.
If efficiency is always going to increase, is there a limit? Is there some point at which the laws of physics (and possibly metaphysics) prohibit further increases in efficiency? If so, what's that limit, and what do we do when we reach it? Personally, I think...
There are many orders of Infinity...It is like a hierarchy: of universal structures--and of ambitions...There is no rest. No limit. No end to the Beyond--no boundaries which Life, and Mind, cannot challenge, and breach. — Nebogipfel, in Stephen Baxter's The Time Ships, 1995.