Is There a Link List in C Sharp?

The shape of the object kind of represents, you know, or at least it feels kind of intuitive to me as to how it operates underneath. So if I keep looking stuff up in an array, I'm going to change it because or else I'll create a copy of it. That's a hash for those faster lookups. Otherwise, it just drives me nuts. But yeah, I mean, that's exactly my point. Like changing your data structure seems super micro optimization. Well, well, I'm not so much about performance is it is about being able to easily use it.