There is some evidence that plancksPlanck’s constant has changed by something like one part in a million since the early universe. And cosmological inflation theory talks about another constant changing, I think. Although even after reading about it I can’t tell which one(s).
Can inflation theory be characterized as a fundamental constant(s) changing? If so which one(s) and how do they relate to expansion?
Do constants have to change relative to each other for it to matter? At first I thought that doubling all the constants tomorrow would be undetectable, or even meaningless by construction. But then I thought since some equations are nonlinear, changing all the constants relative to the past would matter. Which of these is right?