> But riddle me this: what do you do when someone on BI has a financial emergency or, as will happen with some regularity, just flat-out blows all their money and now can't afford rent and/or food?

They still get the BI check every week which they can still use to buy food and pay the rent, so homelessness or starvation doesn't happen. Now they may have some other bills they can't pay, so their cable gets turned off and they lose their car and have to buy a fifteen year old one or carpool or take the bus.

I mean what happens now in that case? If wrap your car around a pole and don't have collision insurance the government isn't going to buy you a new car. If you rack up gambling debts the only thing Uncle Sam will give you is a ticket to bankruptcy court.