[roblfrieburg]

> If you were to replace your body, your brain would necessarily be the same age

You could replace small parts of the brain with new parts piece by piece over time and maintain a continuous consciousness so a sense of self is kept. Whether it'd be really _you_ at the end of full replacement is up for debate.

[outofcuriosity]

I wonder if the physiological substrates for important memories would be preserved in a Ship of Theseus scenario. My hunch is no.