Can The Earth Survive the Longevity Revolution?

At The Volokh Conspiracy.

Uh, yes. But by far the best way to do so is to start building down the population immediately. To continue to rely on highly speculative technologies is madness. We do not need 7 billion people on the planet, and we sure as hell don't need 9 billion. Solutions that urge us to all live like paupers so that there can be more of us are, quite frankly, insane. Americans could, of course, stand to consume quite a bit less, but that alone is not a solution. No austerity measures alone will do the trick. Furthermore, better to have fewer people living better than more people living less well. No matter how you look at it, population has to come down--and adding the prospect of a longevity revolution to the picture just makes building down the population even more important.