Rails Data Structures

The best definition is like facts about the world. Not, I think that not every every struct represents data. Like what's an example of? I don't know if you do. Yeah. To represent for the internal representation of a binary tree. It's not data. It's something else. It's a data structure. It's whatever. Right. So it's like metadata and like, right, it's implementation details that don't actually have to do withlike the information that you care about. Hmm. Interesting. And I mean, it's like the data or the simple version of Rails.Hmm, haven't heard of it.Yeah. But there are different use cases.