I don't think we can answer that questions because we don't even know what "I" is. Are we even "the same person" from one minute to the next? Are we a different person with the same memories? My wife had a rare condition called Global Transient Amnesia three times and I was there for all three occurrences. In essence she temporarily forgets the last few years and cannot form new memories. One remarkable thing that happens is that she will be caught in a loop that last 20-40 seconds. She'll reset and repeat the exact same dialog. This to me intuitively drove the point home that we in a way are just passengers on a somewhat deterministic machine. At that point it practically becomes a somewhat religious assertion though.