Thought experiment:
Let's say that some kind of magical alien technology could take of picture of each ouf the particles your body is made of today. Let's say they wait while the particles your body is made of until virtually none exist and during that time, you age, your change your mind on many things, you learn, you forget, your situation changes, your values changes, etc. Then in 20 years the aliens magically teleport all your particles back from wherever they are in the world to the exact same spot on Earth as they are now to clone an exact copy of you today.
Who then would be the you-est? Future you or clone you?