normally a stimulus works because if you give people $1000, people will go and spend at least some of it. With most options for discretionary spending shut down, there's really just two things left to spend on: rent and groceries (and i guess: amazon orders).

$1000 to every american right now will end up just being a huge payment to landlords. i'm not saying it's a bad idea, people still need to make rent and buy food, but it's not going to stimulate anything. grocery stores are already bringing in record revenues, and landlords don't need the money. It's financial aid, not a stimulus.