It depends on the audience!
The official pitch is that Rust is a language empowering everyone to build reliable and efficient software.
Other pitches I've given people inlude:
- C++ without C++
- Modern programming language comfort with systems programming language control
- (links to all of fasterthanlime's content)
- One language that can comfortably target both application and systems concerns, with velocity and performance to match either
- A powerful type system that helps guide development and program growth without getting impossibly in the way of expressing the design of the logic
- A compiler that actually cares to help you, and ecosystem tooling to match
I personally think Rust has something for any audience, and that's it's greatest strength, but also a significant part of the learning curve, because there's a large surface area immediately exposed.
But if I had to give one single pitch for Rust, it's that it's made me a better developer. Just by the way Rust encourages you to structure programs, I understand how to organize code projects better, in any language.