Trope-a-Day: Overheating

Overheating: A problem everywhere.  The logistics of a post-scarcity society may have eliminated most material-supply problems; advanced ergtech may have made energy not a meaningful practical constraint; computer power may be an absolute bargain everywhere; but even with every fancy high-tech possibility up to and including neutrino-catalyzed cooling in play, the requirement for heat dissipation still enforces speed constraints on nanotechnology, density limits on computronium, causes problems for guns firing on full-auto, prevents stealth in space, and requires most heavy industry to be kept at least in orbit even if its customers are downwell.  Damn you, thermodynamics!