How do you use Rust without lifetimes?

Either a lot of clones or a lot of reference counted pointers. Especially if your point of comparison is a GC language, this is much less of a crime than some people think

When I mean "use" them, I mean make heavy use of them, e.g. structs or functions annotated with multiple lifetimes, data flows designed to borrow data, e.g. You can often get by just with `clone` and lifetime elision, and if you don't need to eke out that last bit of performance, it's fine.