Every millennial retires early story always has a unique anecdote like this. How exactly do you save $1.2 million over five years on 110K a year? Did he already have 800K in the bank before learning about early retirement? Is his wife a highly paid executive or doctor?
"Because his wife currently works, they have yet to draw on those accounts."
Some important information is missing here.
Also, while I don't think FIRE is impossible or unattainable, lean FIRE practitioners are gonna get walloped in the gut when we hit a nasty bear market after a decade of markets pushed higher by crazy monetary policy.