"Perhaps this present humanity should be mastered a tad more before we take on such a task."
I agree with your sentiment but the "task" is already being taken on and I doubt there's any turning back.
One is struck, when reading Kurzweil's piece or his new book, which I recommend, by the inevidibility of it all. Oh, not every detail as he imagines it or even the exact timeframes he lays out but clearly something that resembles what he predicts.
The profit motive+the health motive+the extended life span motive are simply too powerful to be resisted.
And no one country or group of countries can legislate technological advance away. Like rocks in a stream, the water merely flows around them
"I agree with your sentiment but the "task" is already being taken on and I doubt there's any turning back."
Agreed it's been taken on and not to be turned back from but we have miles to go in mastering it.
No more time to reply till this evening probably.