There’s a difference between simplicity resulting of breakthrough insight (eg Brahe —> Kepler —> Newton) and simplicity as a fetish for cognitive minimalism. Throwing away “trivial” details because your “values” tell you what is “important” is not insight, it is reductionism.
Conversation
Replying to
physicists like Planck and Einstein really did believe that the universe has some simple beauty to it, whether we can grasp it or not is another question; but beauty and simplicity guided their theorizing.

