[moldavi]

Single ownership often introduces bugs of its own. In Java, I never need to create an Err if the thing my ID is "pointing" to isn't around anymore in whatever hash map the borrow checker made me store it in.

It's good in some cases, bad in others.

[wiseowise]

> In Java, I never need to create an Err if the thing my ID is "pointing" to isn't around anymore in whatever hash map the borrow checker made me store it in.

What’s the problem here in Rust?