Plurrrr

As a Rust programmer you are probably quite familiar with how references work in Rust. If you have a value of type T you can generally get various references to it by using the ampersand (&) operator on it. In the most trivial case &T gives you just that: a reference to T. There are however cases where you can get something else. For instance String implements Deref<Target=&str> which lets you also get a &str from it and that system also can be extended to work with mutable references as well.

This question has been answered many times before, but it bears repeating: Why do people like using dynamic languages? One common compelling reason is that dynamic languages like Python only require you to learn a single tool in order to use them well.

One of the nice things about the Rust programming language is that it makes it easier to write correct concurrent (e.g. threaded) programs – to the degree that Rust’s slogan has been, at times, “fearless concurrency.”

But I’d like to tell you about the other side of Rust, which I think is under-appreciated. Rust enables you to write programs that are not concurrent. This feature is missing from most other languages, and is a source of much complexity and bugs.