A property of a young brain is that of starting afresh, being able to change and follow entirely new paths. So yes, I suppose that a rejuvenated brain would end

A property of a young brain is that of starting afresh, being able to change and follow entirely new paths. So yes, I suppose that a rejuvenated brain would end up partially wiping itself. On the other end, what's the fun of living forever if you always have to be the same person?