At the present time only one chunk of matter in the universe behaves that way;
How do you know this is true? How do you know there isn't a John K Clark-ish person in Australia or South Africa or Alpha Centauri?
What does it mean to say there is a John K Clark-ish lump of matter in Alpha Centauri, why is it useful to say that matter is "you"? You can't meet it, you can't share stories with it, you can't experience what it experiences through spooky action at a distance effects, you can't feel full when it eats, you presumably wouldn't want your spouse abandoning Earth and going to live with it instead, you presumably wouldn't want it spending out of your bank account; in what useful way is it "you" just because it's a similarly patterned organisation of matter?
If you relax the accuracy in the organization a little, is this any different from saying "your twin sibling is you" or "all humans are the same person"? And if you don't relax the accuracy in the pattern, where do you draw the line? Isn't that a bit of a joke to argue that all "similar enough" people are you, while carefully and deliberately excluding every candidate until nobody counts in that group?
How do you know this is true? How do you know there isn't a John K Clark-ish person in Australia or South Africa or Alpha Centauri?
What does it mean to say there is a John K Clark-ish lump of matter in Alpha Centauri, why is it useful to say that matter is "you"? You can't meet it, you can't share stories with it, you can't experience what it experiences through spooky action at a distance effects, you can't feel full when it eats, you presumably wouldn't want your spouse abandoning Earth and going to live with it instead, you presumably wouldn't want it spending out of your bank account; in what useful way is it "you" just because it's a similarly patterned organisation of matter?
If you relax the accuracy in the organization a little, is this any different from saying "your twin sibling is you" or "all humans are the same person"? And if you don't relax the accuracy in the pattern, where do you draw the line? Isn't that a bit of a joke to argue that all "similar enough" people are you, while carefully and deliberately excluding every candidate until nobody counts in that group?