Pointer ownership prevents memory bugs and concurrency bugs. When you have the combination of aliasing, mutability and concurrency is when you have all of these

Pointer ownership prevents memory bugs and concurrency bugs. When you have the combination of aliasing, mutability and concurrency is when you have all of these Heisenbugs. Rust attacks it from the angle of not having aliasing. You can have mutability and concurrency, but only one thread should have ownership of the thing being modified.