[crazygringo]

I mean, that's great for you. You're just lucky I guess.

But I hope what I described makes sense to you. It's not about 1 GB files at all, it's about regular files. My suspicion is that it's mostly "side features" that start to grind when they get beyond a certain point.

To be more specific with one example, I've used another code editor that a simple "find all" operation will populate a results box. If you mess up your regex to be accidentally super-generic and it finds 100,000 results in your 20K-line file, it takes half a minute to load the results into the results box and become responsive again, with no "cancel" button.

Similarly weird edge cases in a syntax highlighter interacting with a half-finished line of code of yours causes something to choke up. That kind of thing.

Do you understand now? Again, you seem to just be lucky that you haven't encountered this kind of thing.