So how much capacity do our brains have, measured in years? If a human being's body/flesh did not wear out, how long would they be able to live before their brains ran out of space?
I'm asking this in the context of Aubrey's claims of infinite lifespan -- by this, I assume he is allowing for the possible migration of our consciousnesses out of the limited flesh and blood form, and into some less limited form.
If your flesh and blood could keep on going without problems, then how long would it take you to use up your brain capacity, to the point of having it significantly infringe upon your mental freedom?
There have been varying guesstimates of how much spare brain capacity we have -- ranging from 5 times to 10 times as much as we use in our lifetimes. But these guesses are based on simplistic assumptions. Suppose other complications arise, in the form of electrical leakages from adjacent neural branches for example, when you begin to use significantly higher capacities of the brain.
Just as we point out that evolution never bothered to design our cellular longevity to last beyond the point of child-bearing/rearing, likewise why would it have bothered to design our brains/minds to function significantly beyond conventional lifespan limits? Science doesn't yet know all it needs to know about senility and other age-related afflictions of the mind.
Presuming that enough longevity will eventually cause you to run of space in your brain to house your mind, then how long do we have to come up with new accomodations to house the mind?
