> And here we’re talking about inserting a character We are talking about the worst case when the buffer needs to be resized. This is not for every character.

> And here we’re talking about inserting a character We are talking about the worst case when the buffer needs to be resized. This is not for every character. Just once in a while while editing very large texts. Not that it makes it acceptable. But also not as bad as what you're making it sound.