In researching The Tragedy of the Commons, reading Freeman Dyson’s autobiography Disturbing the Universe, and checking out today’s NY Times (subscription required–at least intermittently), I reached the following epiphany. If current trends continue, the world will either be empty or full. We will each live forever or die out because our life expectancy will go to zero. The Tragedy of the Commons was coined back in 1833 by Malthusians. Dyson quipped, “we all thought that energy was going to run out in 1937” and today’s Friedman column worries that social security and medicare will eat up all the budget.

I think that it is good to have social security eat up the budget. As people start to live forever, the only way to get them to cede the good jobs is to offer them a life of leisure. Inflation will take care of any pesky budget infinities. With the right subsidies, the federal budget can be hundreds of percent of GDP. You have to recycle the subsidy dollar and tax it back multiple times per year. That brings up another thing. Taxes will either go to infinity or zero (or maybe negative infinity).

In Joe Haldeman’s Late Twentieth, society has to deal with immortality. I think that there won’t be a radical shift like he extrapolates. If you think of age as a percent of life expectancy, long lives are the same as short ones. Even with clinical immortality, there are always accidents and violence (as he proves in Forever Peace). But suppose we achieve RAID integrity and deaths could hit zero for a good length of time. If trends continued, to update Keynes, in the long run, we will all be dead–or alive.