How have you established that there is a “huge rewrite cost”? Despite other comments here, I see nothing in the post that says “we are moving away from C# and

How have you established that there is a “huge rewrite cost”? Despite other comments here, I see nothing in the post that says “we are moving away from C# and rewriting everything in Rust!” Microsoft is using Rust in Windows as well. They have given examples of how. In that case, they are not “rewriting Windows” but rather targeting specific components that benefit from the characteristics of Rust. Those components are just part of the larger application that is still primarily written in C. C# easily with C and therefore with Rust. They interoperate well. So it seems likely that MS is following the same plan and rewriting specific components of the larger system that would benefit from Rust.