Another thing is the lack of runtime is really compelling. I can continue to write Python and can drop into Rust for hot code. Right now this is through C which

Another thing is the lack of runtime is really compelling. I can continue to write Python and can drop into Rust for hot code. Right now this is through C which does get me a bit of unsafety but it's much smaller scope. As Rust becomes more mature I'm looking forward to the ABI stabilizing so other languages can build ffi interfaces against it directly. I'll admit that OCaml is something that I've looked at before but it didn't have the staying power for me. It's likely just because it was too different at the time compared to what I was used to.