> You're not seriously suggesting humanity is better without the Internet…

I cannot speak for karaterobot, but that seems to be an unwarranted inference from the post you are replying to, which merely points out that the internet did not lead to the more cooperative and altruistic world that some idealists predicted.

You posit that humanity would step up to the challenges of a ten-fold increase in longevity, but I haven't seen what I would regard as persuasive evidence for that view. The fact that the internet has been a net benefit (a view I accept) is not that evidence, IMHO.