[jisaacstone]

You've never been poor.

$2-3 / day for food is doable (Cali groceries are a bit more expensive so maybe $4 here). Cut out all but the cheap meats. bread and veggies are super cheap (corn can be 5/$1 when it is in season)

no insurance. no internet (libraries are great). no car.

I never had expenses above $1000/month (not counting the month I paid $1000 to buy my first car) until I moved to the bay area and started making six figures.

[Domenic_S]

Fairly sure we're not talking about the theoretical bottom limit here.

[SolarNet]

But I think the original commenter was commenting on the feasibility of the original article, which goes down to the minimum limit.