Since moving to Austin ~4 years ago, I was boiling until we raised a bit of money. Now I'm simmering again. I think you can simmer indefinitely. And I think you can sustain a rolling boil for a couple years if you're confident you'll escape it.

If I had enough wealth and didn't want to dowse the fire, I'd probably try to put it into a trust. Bitcoin is like a poor man's trust.