I found that in Rust, you don't have to think about the distinction so much - not like you have to in for example Python and C# (pervasive/transparent object re

I found that in Rust, you don't have to think about the distinction so much - not like you have to in for example Python and C# (pervasive/transparent object reference languages). In Rust it's predictable and mostly obvious which data is shared ownership or shared, and which is not. We don't need to talk about deep vs shallow copy semantics much in Rust. :)