If its a spectrum, what would you even use as the right most “you” end of it? What reference point of mental state is the most you? Or, is it arbitrary because the definition of “oneself” is a perceived construct that isn’t actually a thing? Your current state is not inherently more special that one where you’re missing half of your brain, one isn’t more “you” than the other. They’re both just different orientations of particles without any concrete meaning.