Who knows, you might have one in your computer in a decade or two.
If you're contemplating this issue seriously, know that not doing anything isn't an option for more than a few months, max.
Ask HN: What would you spend your time working on if you didn't need money? https://news.ycombinator.com/item?id=40500429
Build a monument of brutalism unlike anything this world has yet seen (and I’m well aware of what that covers.)
Who knows, you might have one in your computer in a decade or two.
If you're contemplating this issue seriously, know that not doing anything isn't an option for more than a few months, max.