Null pointers are the billion dollar mistake

@davetchepak "What can C# do that F# cannot?"
NullReferenceException :-)

Educating the imperative gorillas about sum types:

https://chadaustin.me/2015/07/sum-types/

A tagged union is just a union with a tag field, which is trivial in any language sufficiently powerful to have unions in the first place. And ``pattern matching" is FP turdware that real programmers don't need, anyway.