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/

natural numbers
noun
noun: natural number; plural noun: natural numbers

the positive integers (whole numbers) 1, 2, 3, etc., and sometimes zero as well.