Apart from actual race conditions, there are a lot of tricky ownership situations that Rust's model helps with. When you have lots of different objects referrin

Apart from actual race conditions, there are a lot of tricky ownership situations that Rust's model helps with. When you have lots of different objects referring to one another, it's easy for one of them to make a mutation that the others don't expect. Even if all this is happening on one thread, and it isn't strictly speaking a race condition, it can cause confusing bugs. Languages like Python and JS tend to address this by making some objects immutable. Rust addresses this by being very explicit about ownership, and by forcing you to use RefCell etc. in cases where shared objects can be mutated. If you have a shared reference to regular data, you know it can't be mutated out from under you in safe code.