Correct me if I'm wrong, but it's absurdist humor.
It's not that absurd.
Switch to Republic Wireless, get some energy efficient bulbs, cook at home more, maybe get a roommate to cut that rent down, and he can get most of those categories quite a bit lower.
Probably drop his monthly spend down from $4900 to $4300, a savings of $600/mo = $7200/yr. That's $180,000 less he needs to have saved using the 4% rule, just by trimming his food, data, rent, and utility bills.