You are correct about growth, but speed is also a resource - kinetic energy is still energy, which comes from somewhere, and unless you have 100% perfect energy usage, there is thermodynamic loss, contributing to entropy, which itself is another resource. Temperature is a physical resource all lifeforms and machine processes share in a gravity well, and all processes breakdown after a melting point (unable to maintain their own required entropy levels)
You are correct about growth, but speed is also a resource - kinetic energy is still energy, which comes from somewhere, and unless you have 100% perfect energy usage, there is thermodynamic loss, contributing to entropy, which itself is another resource. Temperature is a physical resource all lifeforms and machine processes share in a gravity well, and all processes breakdown after a melting point (unable to maintain their own required entropy levels)