Divisions I've already written here that categories don't exist outside of our minds. The reality that we perceive with our senses isn't divided: we, consciously or not, divide this perception into small parts in order to help us evolve in it, then we believe we recognize those parts, for example in the raw image of reality that our eyeballs perceive, which solidifies the belief that those divisions really do exist in the first place. Looking at a tree, we think that it obviously represents a tree, but all we see is variable intensities of color. It may sound dumb, be we didn't recognize "a tree", we felt from our senses a stimulus that made us think of a tree. It does make perfect sense to divide our environement. It's what allowed any animal to survive up to this point by creating a division between danger and food. Humans are the one specie on Earth that probably pushed this natural ability the furthest by collectively creating billions of categories that go way beyond recognizing things in their ordinary lives. But yet again, these are creations, that do help make sense of reality, but that don't actually exist in it. We believe the concept exists, but any and all links that connect it in some way to reality are also beliefs. Moreover, we believe the concept is a single, independant entity, but often forget it has been carved out of our immediate sensory perceptions, or stems from other concepts which were. And nothing in our immediate perceptions can actually confirm that yes, those divisions are real. Could "reality" actually be already divided into smaller parts? It very well may be! But this knowledge is unattainable as the only methods we possess to be aware of the world, our senses, cannot see those hypothetical divisions. Using other instruments to try and prove their existence is already a flawed approach because, as with our senses, they aren't what they see, sense, or detect. Not being what you study means you can only observe, not know. man yells at cloud