[zzzcpan]

You don't need Rust's complexity and borrow checking to protect you from data races. Actor model does that without the bad parts.

[hderms]

That's true but actor model achieves freedom from data races by forcing ALL messages to be synchronized. This can be useful in some situations but imo isn't a panacea for concurrency issues

[zzzcpan]

> ALL messages to be synchronized

I'm assuming you mean implementation-wise. Only cross-core communications need synchronization and since messages are asynchronous you can pay synchronization costs only ones for the whole batch.