What I'm asking is basically how is the "self-awareness allocation problem" solved. I know this problem can be confusing, so let me try to explain it by means of examples:
- Example 1: Let’s imagine there are hundreds of identical brains spread around the world, and let’s focus on brain A which is located in Mexico and brain B which is located in China. Now, the self-awereness (henceforth, SA) that emerged in brain A is bound to experience life in Mexico, it will never know what it is like to live in China (assuming they can’t travel, for the sake of the example). The reversed can also be said of the SA manifesting in B. But, what prevented the SA that emerged in brain A from emerging in brain B, or from emerging in any other brain for that matter? How is this "SA allocation problem" solved? For example, if you claim that the particular brain where a particular SA emerged is determined by the physical structure of that brain, then how do you solve the case in which all brains are identical?
Example 2: Right now you are aware of what’s happening to your brain (leaving the sub/unconscious aside), right? You are watching your laptop’s screen, you are feeling your clothes touching your skin, you are aware of your thoughts popping up in your mind, etc. That’s your current POV (point of view). Right? At the same time, I’m aware of what’s happening to my brain, i.e., I’m watching my laptop’s screen, I’m feeling my fingers touching the keyboard as I type this, I’m aware of my self-dialogue and my thoughts in my mind, my emotions, etc. This is my POV (point of view). Ok? Good …
Now, image that suddenly our POV’s are SWAPPED. So, I suddenly start to become aware of the sounds around you, your laptop’s screen, your thoughts, your inner dialogue, etc. Likewise, your POV suddenly appears in my brain/body, and you start to become aware of my thoughts, emotions, sounds, touch, etc. In other words, each POV supplants each other’s POV. But everything would still be the same. Instead of your POV being aware of your brain/body actions, now it is my POV that is aware of them. So the next morning when your brain/body kisses your girlfriend, it would my POV being aware of it instead of yours. And when my brain/body decides to feed my cat next morning, your POV would be aware of it instead of mine. In other words, everything would be exactly the same, with the only difference that instead of my POV being aware of what used to be “my” body and your POV being aware of what used to be “your” body, it would be the other way around. One could loosely say that after the swap each POV “believes” to be the other person, although that would not be technically correct as the POV is just awareness, and “believing in something” requires some cognitive processing. In other words, each brain has its own beliefs, personality, etc., which have not changed. The only thing that we are changing in this mental exercise is the location of the POVs. My brain/body would continue living its life and your brain/body would continue living its life, our personalities would still be the same, people who know "you" would still believe that "you" are "you" and people who know "me" would still believe that "I" am "me". Our lives would continue being as they used to be, with the only difference that the POVs which are aware of those lives are now swapped.
Hopefully this made the concept clearer. Now, assuming there are hundreds of identical brains and bodies (in fact, the requirement of identicality is not even necessary), how do you solve this “POV allocation problem”, so to speak?
Notice that I'm NOT saying that one brain can be aware of another brain. That's not what I'm saying. What I'm saying, specially with example 2, is that there is no apparent reason for your self-awareness to be necessarily "attached" to your current brain/body, as we can perfectly imagine a situation in which our awarenesses/POVs are swapped and everything would still be the same (please read example 2 again). However, it turns out that our awarenesses/POVs are in fact allocated in a specific way and not in another. Why is it so? That's the question.