# Theory Is Sense Theory = Sense. This is not an inclusion. This is an equal. What people call "sense" specifically is just an innate theory. As I once wrote, why you can see a clear object while you have two eyes is because there's already an optical theory in your mind. Of course there are biological differences, but those just mean that your body has less / more theories. Conversely, a physicist can SEE a specific particle in an image from a particle detector, but you (probably) can't. That's because you don't know the theory. Similarily, you can understand a conversation if you know the language, but otherwise it is just a sequence of sounds for you.