So you claim that beyond some magic size limit a codebase cannot be easy to understand. Well, quantify it. At what number of lines of code does a codebase pass from the domain where it is possible to easily understand it to where it is impossible?

I suspect you didn't pay any attention to what I wrote about how people go about ensuring that large codebases maintain readability. That saddens me a bit because it means you probably aren't interested in learning anything.

This is just an incredibly bad faith reply, and an insulting one at that. I don't know why you felt the need to cross into personal territory, but I will make a mental note not to engage with you again.

PS, please check my comment history before claiming that "I'm not interested in learning anything".

Practice what you preach.