system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What are food stamps?
gpt
Poor people get money from the government to buy food (this is also, in part, a subsidy to farmers).  To make sure they spend the money on food, they used to get special slips of paper that they would use at the store.  These days, it's all done electronically, just like a credit/debit card, using a system generically called "EBT".