I think neuroplasticity is well known to have a physical basis. We can probably extend the neuroplasticity of young adult and early middle age into longer and l

I think neuroplasticity is well known to have a physical basis. We can probably extend the neuroplasticity of young adult and early middle age into longer and longer timespans, but all you have to do is watch a teenager or young adult for a few days to see that the extreme neuroplasticity of very young people definitely comes with some drawbacks. I don't think I would want a future immortal billionaire with access to accumulated generations of power to enter a new adolescence with the brain reset that comes along with it. We need young people to be stupid and brash and occasionally fearless and brilliant and unburdened by the lessons (or scars) of the past to keep society moving forward but those can't be the same people in charge of the world. There are roles for both.