What experiences reality

What experiences reality? Many people believe that their body experiences reality. This is true in a certain sense, but it is not completely true. Do you experience reality, or does your body experience reality. Does your body experience reality when you are dead? Things are still happening to your body after death but is this the same thing as you experiencing reality? Some people say that you experience reality through your body as if there is a reality connecting to a body and then to a soul. If the soul does not exist and the body does not experience reality then what does? Each person experiences reality in their own ways. If we take your body and rearrange the structure and functioning of your brain so it now has the structure and functioning of someone else that you know, will you be experiencing reality then? Your body will still be processing the input from the senses but will you be experiencing this reality? These modification to your brain will be producing a person that identities as some one else, with different memories, likes and dislikes, abilities language skills, etc.. This is clearly no longer you. You might like dogs, but this other persons reaction to dogs might be fear. You might be in love with one person but this new structure and functioning brain might love someone completely different. By changing the structure and functioning of the brain in your body enough it appears that "you" are no longer experiencing reality any more. It appears that what experiences reality is not the body but the structure and functioning of the body. You are not tied to a brain or a body but to the structure and functioning of the brain.

Are you just tied to one structure of the brain and thus just one way of functioning in the brain? If your brain's structure is changed not to some one else's, but to an earlier version of you will you experience it again like you did originally? For example, if the structure of your brain was changed to the structure it had 5 years ago what would experience the current reality that you are currently in. Would you experience one moment experiencing that reality that existed five years ago and all of a sudden experience this new reality that you are currently in? Lets say you were watching a TV show five years ago, would you suddenly now experience being five years into the future at a different location? Lets say we recreate the exact same reality that you existed in five years ago with you watching the same TV and TV show in a room that was exactly like the original etc., would you not know any difference or even could you know the difference? You would think that if you are your body and not the structure and functioning of the body there would be some noticeable physical difference. Of course, if you only changed the structure and functioning of the brain and not the body also you would eventually realize that there is a difference. It would seem like to you that your body all of a sudden got older. Again would it seem like this to your body that you got older or would it seem like to the structure and functioning of the brain that you got older?

If it is the structure and functioning of the brain and not the body that experiences reality wouldn't it be the case that identical structure and functioning in different bodies always experience the same reality, the same way, with the same consciousness being produced? Since the important aspect of you is the consciousness and not the body, because a body can exist without producing any consciousness, would it not be the case that continuity of structure and functioning is more important than continuity of a particular body for the continuation of "you" through out space and time?