honestly, i think to survive as an entity, we will have to become ever more efficient and i believe a purpose built thinking machine has the ability to be more efficient than a flesh and blood human machine, but we will see in time, wont we?
either that or we could shrink a colony of humans down to a couple hundred per planet so our effect on it was minimal and survive for as long as possible and make sure we are 'backed up' in several solar systems so the human race won't get wiped out by natural disasters or aliens or something
change definitely has to happen at any rate we know we cant survive as a race with our current policy of population growth and resource consumption
if i could live in an adaptive brain that duplicates my thought process and would give me the same or better quality and quantity of life at reduced impact to the world in which i live i'd be a fool to say no wouldn't i ?
but that's the real question isn't it, is it 'better' ?
i don't mind points of 'no return' to our old form if we can definitely prove we gain something, at the end of the day we could just make new bodies for ourselves even if it takes half a million years to smooth out all the bugs out of living tissue and dna sequences, it's not like we wont have the technology to do it at that point, maby we could even engineer the perfect body to be in after spending time as pure machines if they turn out to be flawed in some way we cannot accept the thing is we would have time very much on our side!
anyway, i'll never see it so whatever
