You Are the Ship

Your body changes constantly, but not on one simple seven-to-ten-year schedule. Blood and gut cells turn over quickly; some muscle, heart, and brain cells can last for decades or a lifetime. The atoms in your body still cycle heavily over time. Your memories change every time you recall them. Your personality, beliefs, and values shift continuously.

The person you were at age ten shares very little physical or psychological material with who you are now. Yet you feel continuous. You say "I remember" as if the same entity experienced both the memory and the present moment. That stubborn sense of being one person is exactly what the paradox forces you to explain or surrender.