Kerry Howley brushes up on cryonics, i.e. low-temp preservation of individuals for future reanimation. Robin Hanson, among those profiled in the piece, explains his enthusiasm for the practice:

I’m pro cryonics not because I’m pro all-med-no-matter-what, but because its cost benefit seems favorable – a >5% chance of decades more life for a few tens of thousands of dollars.  And this isn’t at all about immortality, the odds of which are far lower, but mainly about more decades of healthy interesting life.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.