[Aardappel]

Yes, it is more similar to Swift than Rust. I guess people are more familiar with Rust.. since Swift hasn't actually implemented it yet?

https://github.com/apple/swift/blob/master/docs/OwnershipMan...

[dbaupp]

The compiler has implemented a lot of the infrastructure for reasoning about ownership, and has had optimisation for eliding reference counting operations for a long time (but the ownership stuff makes them simpler).