I'm betting more like three to five years.
I was talking to a friend (another old guy, like me, but really rich, unlike me).
We've both been through at least two recessions (big, nasty ones, with teeth and claws). We realized that there's an entire generation of folks; many running companies, that have never seen a real bear market.
It's likely they are having a shit hemorrhage, right now.
The company I used to work for, was (still is) an over 100-year-old Japanese company. They lasted through a devastating war, a depression, multiple recessions, and were still around. I'm hoping that they stay around. They've made some choices that could be disastrous (I think that sidelining my team was one ;), but not the same kind a lot of companies are making now. Lots of people are leveraged to the hilt. Bad place to be, when the economy starts tanking.
HODL is the word. Live cheaply, so you don't need to cash out in a trough. Don't rely on other people's money, keep debt way down, keep margins high, optimize processes, etc.
Old-fashioned stuff. It worked 100 years ago, and still works today.
Not everything old is bad.