[Dowwie]

Concurrency: if you used Elixir, then you should understand how different its concurrency offering is from that of std and tokio. Standardized, structured concurrency makes building complex, highly concurrent, stable, low-latency systems achievable by mere mortals. Rust has no such offering, yet, but it may 5-10 years from now.

Runtime instrospection: the ability to log into a running application to inspect its state, start and stop processes

Compile times: elixir compiles very quickly and has tight feedback loops where as rust compiles slowly and has long feedback loops

Elixir also doesn't get in the way that the borrow checker does, allowing a programmer to just get on with work and not become saddled with related debugging.

Ecosystem: data pipeline processing via GenStage, Broadway, Flow -- wow. Rust developers should take note of what can be achieved in Elixir. However, Rayon and crossbeam are fantastic. Elixir cannot compete with Rust on performance in the category of pipeline processing, but it has very high marks in other very important categories that need to be considered for professional development.

I don't think that fault isolation is as compelling an advantage over Rust as it is other languages. Rust makes defense programming a regular part of development, unwrap used sparingly. Faults hardly happen because the program isn't designed to crash. In the rare event that a well-designed Rust program crashes, it's probably managed by an orchestrator that will restart. Both well-designed Elixir and well-designed Rust applications can enjoy very long uptimes if that is a goal.

This is just a starting point of discussion.