Every time you sleep… everytime you have gone under anesthesia, every time you have been knocked unconsious or passed out from alcohol, you have experienced a disconinuity of being.
I am not convinced that my body houses my “essence” or consciousness. It exists as memories and processes that occur because of my body, but if that were transferred over to a machine, I would still be me. My body wouldn’t be me. But who cares. My memories and my processes that make me who I am would be carried over. Idealy fully replicated by the computer system. It would be no different from falling asleep and waking up in a better mood.
You are not your neurons. You are the entire product of the sum of every reaction that takes place in your brain. You are the action potentials, the neurotransmitters. Those are what make up your memories and those are what make up yourself.
Even this is a moot point, even your brain cells aren’t always the same. They change themselves. The sodium and potassium ions aren’t used over and over indefinately. The nutrients that your cells take in replace the current ones, and the atoms and molocules that make up your cell bodies of your neurons are replaced in due time. Why does it matter if there is a continuty? Why do you somehow feel your brain processes are special. And that turning you “off” and then “on” sometime later, or moving you to another container will make you a different person?
Why, all this is great to talk about, and your idea certainly appeals to “common sense,” but not everything works according to our rules of logic. It could be just as well that when a copy of you is made, you will feel a few moments of duality as both processes experience the same thoughts and slowly move away with slightly different memories. It is just as likely, and has just as much proof. None.
Hey, if you want to believe in some magical “essence” that makes your body special, and moving it will kill you and a “mere” copy will live on, go right ahead. I personally see no difference between myself and a copy. Because essentially there is not a difference. Of course we could quibble over that for thousands of years, just like any religion or philosophy. In the end, it hardly matters- there is currently no evidence, and it is fully belief. My belief is not superior to yours, and yours is in no way superior to mine. I am fully comfortable with the idea of a “mere copy” of mine living forever.