Accumulating ideas gives compounding rates of insight
It's easier to grok ideas that are adjacent to ideas you already grok. This means that ideas also have their own adjacent possible, emanating from the ideas that form your existing foundation of understanding.
Like all adjacent possible foundations, as the foundations grow, the size of the adjacent possible grows out a compounding rate, making it more and more likely that when you come across the stimulus that might help you find a good idea, that you can grab onto that idea.
Having the right insight is what allows you to jump on opportunities. Growing your adjacent possible of insights is a form of optimizing for luck.
Exposing yourself to novel information streams, being open and curious, and using different lenses all help you grab onto further afield ideas and maximize your insight foundation.