The longer we live, the more I wonder if there is a time where we do have to start talking about population growth and the risks of people living longer. Should science bring us to a point of substantial extension and longevity, the demands on the planet will continue to grow exponentially.

It's going to be a hard discussion for sure.

Don't really think that the chances are as high as 50%. As long as short term profits will be more important than long term ones as long there will be not enough momentum to achieve it in 20 years