Nullability isn't that big of an issue in practice. Every call in objective-c is equivalent to a variable?.thing call anyway, and in swift codebases most thing

Nullability isn't that big of an issue in practice. Every call in objective-c is equivalent to a variable?.thing call anyway, and in swift codebases most things become non-null fairly quick. It's probably the top feature of swift for me, which is ironic because it's relatively cheap (in compile time) to implement compared to many other things swift has. And if you're doing nullability, you might as well add ADT enums, since that is usually how it's implemented.