[bvw]

Ideas evolve. Closed physical systems do not. When you see a physical system evolving, the natural question that is begged is where are the ideas entering the system.

Non-closed physical systems "evolve" not only due to energy entering, but to the structure and form of that energy.

Ideas evolve. Physical systems, without ideas being inserted into them, do not evolve.

[TomB]

Ideas evolve. Physical systems, without ideas being inserted into them, do not evolve.

You conveniently use terms "closed physical system" and "physical system" interchangeably. Physical systems increase in complexity all the time given added energy, NOT ideas.