Sure, but you can't mark 100% of non-cash net worth as completely illiquid. You can borrow against the value of your home, borrow against the value of your 401(

Sure, but you can't mark 100% of non-cash net worth as completely illiquid. You can borrow against the value of your home, borrow against the value of your 401(k), sell your stock. If you need a few days to move money around, there's credit cards. Personal loans. It really depends on what you're trying to measure.