according to some theories, there is enforcement of Chekov's gun. Reality is combinitorial explosive, ie. there are vastly too many inputs for us to synthesize. So our perception and memory both function to "chunk" events and objects. These "chunks" are what you perceive and remember. So you don't just bump into random objects, but in fact you only see and remember things that are in some way relevant. In other words, everything is a Chekhov gun in some ways.

I think there are lots of different thinkers with this perspective, here is one concise formulation:https://www.youtube.com/watch?v=KPByuAeFxwE