[mkerrigan]

Check out https://earlyretirementnow.com/2021/05/26/the-emergency-fund... from Early Retirement Now. He also links to other posts debunking the need for emergency savings.

[IanCal]

Worth noting that they're not saying you don't need that kind of value on assets available to you. They are simply advocating for keeping that money invested rather than as cash and they have access to immediate fairly large loans (via credit cards and something about their mortgage).