It's physics. Any system responding to a stochastic driving system can be considered computing. In fact any system that retains information about past environme

It's physics. Any system responding to a stochastic driving system can be considered computing. In fact any system that retains information about past environmental fluctuations must have information that is predictive of future ones for the system to be thermodynamically efficient. https://arxiv.org/abs/1203.3271 https://arxiv.org/abs/1203.3271 This physics creates complexity. It selects for increasingly complex thermodynamically efficient structures with predictive power. Stars die, they become entropy, but until they run out of fuel they drive the creation of localized complexity maxima.