What are some trippy thought experiments?


Neurons are constantly dying and being replaced -- not by identically behaved ones, but by new ones in new places doing entirely different things. Add to this the fact that your existing neurons are constantly being rewired to act differently than they did before. Even the memories you have of old times are modified and rewritten every time you remember them. (This is not conjecture. Recent research on memory actually backs this idea up.) Now, as you grow older and your old neurons are modified or replaced altogether, does there come a point where you stop being you? What if through life-extending technology, you were to live long enough for every neuron in your brain to be replaced? Are you still you?