I finally got around to reading this, and it's finally bringing together some stuff I've been trying to articulate for years in much better ways than I could.
"This number is probably the truest measure of a person’s real wealth: What is the largest unexpected financial shock you could sustain without the cost of that to you suddenly becoming ten times the original cost or more?"
https://shift.newco.co/your-financial-shock-wealth-4845e6dc1d2f