[shawnz]

> I have files that are 10k lines long and think they are better that way

Whether you prefer this practice stylistically or not doesn't change the fact that it is objectively worse in terms of code quality and maintainability, even if you are able to compensate for those deficits with your own skill/experience.

You might have no problem successfully navigating that code for which you've already built a complete mental model around, but any future collaborators or inheritors of that code will have to waste hours or days rebuilding that mental model which you could have just codified in the structure of the source code.

[inimino]

> objectively worse

That's an opinion. There's nothing objective about the assertion that many small files are inherently more secure. However, that many small files and one large file have equivalent power, can express all the same programs, and can be equally secure or insecure... those actually are all objective facts.

[shawnz]

I didn't say it was objectively more secure. Obviously it's possible to have code that is of poor quality/maintainability but still happens to be more secure than its alternatives. Maintaining good code quality is not a magic bullet that prevents all bugs.

[inimino]

Then replace secure with "maintainable" or "high quality". It's still a subjective opinion, unless you can prove that large files are inherently less maintainable or lower quality (which you can't, because all the arguments here are subjective and, like almost everything in software development, these opinions are driven by fashion rather than any evidence).

It's popular to use "objectively" for "clearly" and I've been guilty of this myself, but let's try to reserve the term for actual matters of fact, lest it lose any meaning.

[notacoward]

Besides being unclear whether one is better or worse, it's not clear there's even a practical difference when a significant number of programmers will be navigating and learning code through an IDE anyway. They'll be jumping from function to function, barely even aware of which file each one is in.

Personally I prefer smaller files, but that's only because of compile times. I started my career with punch cards, so I know what slow compile times look like. For a long time they seemed to be getting ever shorter, until I switched to a "modern C++" project. Now compile times are not quite back to the punch-card days, but back to maybe late 90s, and breaking stuff up into smaller files helps.