 Backup reinforces this is the things that are really easy to do you deal with these things when you're doing token economies That's really only the time they're relevant because you have to turn in a token to get your reinforcer So when you are on a token economy and you've loaded these people up with tokens, right? They've got stacks of them and they're like, what do I do with them now? You're like you can trade them in for things those things that you trade the tokens in for backup reinforcers They could be tangible. They could be edible. They could be activities They could be all sorts of things just whatever you exchange the tokens for you can't buy them with anything other than money I mean tokens. I mean money. I had tokens and money and tokens and money Do you get it folks? We live in a token economy So basically everything you buy as a backup reinforcer unless somebody gives it to you without the use of a token Then it's not a backup reinforcer because backup reinforcers are the only part of token economies Anyway, I hope you get it and it's the stuff that you buy with your tokens that hopefully reinforce behavior