That's a great insight.

I have often mulled over repetition as it applies to epistemology. In Derrida's critique of Modern epistemology (with particular implications for science) he seems to insist that every single experience within any person's life is a fleeting, totally unique, one-off thing that can have no significance beyond itself. For sure, no one can "put one's foot in the same river twice," as Heraclitus noted, but doesn't repetition of 'like-enough' experiences in our ongoing interface with the world (to include 'hell--other people', as Sartre had it) produce understanding of that world that is definite enough to be called 'knowledge'?