Ludwig Wittgenstein's duck /rabbit.
You can either see the rabbit or see the duck.. You can either see one of them or the other at a time.. You can't see the two simultaneously and realize that they are actually identical at once.. Only in a linear process of going through one and then other.. And then having the Insight "oh its not a rabbit OR a duck.. It's both simultaneously and only one of them relative to a certain perspective". If this is understood.. Basically you don't have to read a single word in epistemology looking for the truth in this OR that. Not- two. Reality Is the rabbit - duck!!