Saving capitalism isn't my top concern. We need to not destroy the world and we obviously cannot grow our population forever ... at some point, the number of human beings on this earth will be too many. Maybe you think that we won't reach the crisis level for another 50 years, but it is sure to happen if we don't take steps. I don't believe the U.S. has the capability of making big needed changes, frankly. Whatever change we make won't be voluntary. If I had to guess, I think we will first try to escape the hardships of adjusting to new realities militarily, and only if/when we are beaten will we accept that the world has changed.