Physics results in TCS? It seems clear that a number of subfields of theoretical computer science have been significantly impacted by results from theoretical physics. Two examples of this are


Quantum computation
Statistical mechanics results used in complexity analysis/heuristic algorithms.


So my question is are there any major areas I am missing?

My motivation is very simple: I'm a theoretical physicist who has come to TCS via quantum information and I am curious as to other areas where the two areas overlap.

This is a relatively soft question, but I don't mean this to be a big-list type question. I'm looking for areas where the overlap is significant.
The search technique simulated annealing is inspired by the physical process of annealing in metallurgy. 

Annealing is a heat treatment where the strength and hardness of the substance being treated can change dramatically. Often this involves heating the substance to an extreme temperature and then allowing it to cool slowly.

Simulated annealing avoids local minima/maxima in search spaces by incorporating a degree of randomness (the temperature) in the search process. As the search process proceeds, the temperature gradually cools, which means that the amount of randomness in the search decreases. Apparently it is quite an effective search technique.