So you mean the people in the 24th century are not who they originally were. Maybe they're actors. And how much will a quantum mechanic charge to fix me?
I am not an animal. Wait a minute, yes, I am an animal, sorry, I thought.. sharp inscisors, claws, a taste for blood and raw meat, pooping on the lawn, what am I saying. Of course I'm an animal. I think therefore I am.. What? an airplane? What I think I am? If we were dead, how would we know about it?