What are you trying to communicate here? That releasing one of the most popular languages in the industry without sum types is a form of original sin, and if they ever added enums and a match statement, you're be more right to hate the language? Some of the logic in these threads is just baffling to me.

Maybe? Generics were the most egregious absence, since it's challenging to express some constructs in a static language without them. Nullable types are another issue that other modern languages (e.g., C# and TypeScript) are trying to solve, but we it's a difficult issue to tackle when nil is already pervasive in the language.

I think generics are a great addition to the language, and I'd love to see sum types (which would allow Option to circumvent nullable types), but I think that's much less likely.