Rust or Scala?

Question

Which one is more difficult to learn?

Answer 1

Both borrow heavily from Haskell but Rust has given me more trouble for sure.
Mathematically it is based on affine logic which is pretty unique among programming languages. The ownership and lifetime mechanics are really cool but require a bit of getting into.

Answer 2

I liked this review. Although it leans in favor of Scala, you might be able to pull what you need to decide for yourself.

https://beachape.com/blog/2017/05/24/rust-from-scala/

Answer 3

As somebody who knows Rust but does not know Scala, Rust is probably more difficult due to its complicated memory model, yet efficient. Don’t let that daunt you though, if you want to learn something just learn it.