Your question can only ever be grasped by a very select few. I have asked this question many times with no avail. After thinking about it long and hard here is how i have come to view this matter.
Whatever it is that generates "you" in your brain is a mystery to science at the moment. Picture your brain like a computer desk top and the ram being "you". Experiences and memories really have no baring on why your you. I could take your memory and surgically remove it and damage your brain entirely, it wouldn't change the fact that "you" were still in that body bound to that specific mind. You wouldn't act the same but you would still be you technically. If i were to remove the ram(you) and put someone else in, that new person would now have access to your memories your mind and biology. That new ram chip would now be what you are now and have no idea it was ever someone else. "you" on the other hand would no longer exist but nobody would ever really be able to know that because the new cousiesness would act and think exactly like you but its not really the same person i am talking to now. Whatever it is that makes you "you" is not the entire brain. Its something else plugged in to the rest of the hardware like someone driving a car. You happen to be driving that specific car...why???? i don't know.
Whatever it is that generates "you" in your brain is a mystery to science at the moment. Picture your brain like a computer desk top and the ram being "you". Experiences and memories really have no baring on why your you. I could take your memory and surgically remove it and damage your brain entirely, it wouldn't change the fact that "you" were still in that body bound to that specific mind. You wouldn't act the same but you would still be you technically. If i were to remove the ram(you) and put someone else in, that new person would now have access to your memories your mind and biology. That new ram chip would now be what you are now and have no idea it was ever someone else. "you" on the other hand would no longer exist but nobody would ever really be able to know that because the new cousiesness would act and think exactly like you but its not really the same person i am talking to now. Whatever it is that makes you "you" is not the entire brain. Its something else plugged in to the rest of the hardware like someone driving a car. You happen to be driving that specific car...why???? i don't know.