Cryonics

This technology exists right now. You can arrange to have your body frozen to -321° Farenheit shortly after death in the hope that scientists in the future will be able to revive you and reverse whatever caused your death. Unfortunately, you can’t get frozen while you’re still alive and try to be revived, say, a week later; US law states that a person must be declared officially dead before they can legally be frozen. Otherwise you enter the tricky territory of assisted suicide (since the freezing process will kill you). Oh, also it runs around $150,000. But in the Utopian future, you won’t need money, right?

There are a number of exciting breakthroughs coming in the next few decades that may lead to much longer lifespans and even, possibly, immortality. Let’s just hope we’re all still alive when these discoveries happen!