High School Do systems continually evolve?

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The discussion centers on the concept of whether systems, particularly in quantum mechanics, can remain unchanged over time. It is argued that while certain properties may appear constant, all systems are subject to evolution due to interactions and the inherent nature of quantum mechanics, which includes zero point energy. The impossibility of placing macroscopic systems in exact energy eigenstates is highlighted, as real systems involve countless interactions that cannot be controlled. The Heisenberg and Schrödinger pictures illustrate that the perception of a system's evolution can vary, but fundamentally, the quantum state and its measurement outcomes can still reflect change. Ultimately, while macroscopic systems are unlikely to remain unchanged, smaller systems can exhibit states that appear static under specific conditions.
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PeterDonis said:
Um, yes. So what? Nobody has been arguing that it is impossible for a system to change if you're not measuring it.

I wasn’t suggesting anyone was. I was just seeking clarification hence the question mark at the end of the sentence.
 

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