Its a research paper, the audience is going to be other experts in the field; it will be written in a way suitable for publishing to a journal. Even with a concise writing style, the paper is already at 100 pages. If you want to understand the paper it would make more sense to pick up a textbook and learn about the prerequisite material rather then expecting them to write a book for you, just to communicate their research result.

Explaining simply and rigorously are not mutually exclusive. They can do both.

I would agree with this, good explanations and rigour are definitely not mutually exclusive. But I am not sure what you are expecting. This is a research paper, intended to be read by other experts. Even still, if we look at how the paper is organised, the authors start with a high level overview, and build upon simpler problems to leverage their way to an understanding of the main result. For a research paper, it is extremely thorough.

If you want a 'simple explanation' that allows a layman to gain some understand the problem, sure. But this isn't, and absolutely should not be, the purpose or content of the research publication, which is to succinctly communicate to other experts the results of their findings.

simple != simple for laymen. It doesn’t make sense to recap the entire history of a field in the intro

It's hard enough to create the thing and make your explanation fit on the page limit. You also want people to make it comprehensible at the same time?

If you want to, you can study it, make it easier to understand and write another paper. If it's good, you will do both yourself and the original author a huge favor.

You've been in plenty of relationships, enough even, that you can make the claim that "often male" partners are not able to tolerate minor irritations?

What is this, slut shaming? I'm a man and not the person you replied to. I've had close to a dozen long-term partners and many more short-term ones. This is not uncommon in the western world for men and women.

Everybody gets annoyed by something. Men and women. Couples fight. Most of them a lot. Shit, in my apartment building I hear them fight all the time.

And too add to this, dietary intake of cholesterol in general has less of an effect on serum cholesterol levels then people realise. This is especially true for eggs iirc due to the how the cholesterol is found within them.

Anyway, cholesterol is an indicator, not a cause. If you do stuff to add cholesterol to your bloodstream, you just muddy the signal. Your liver produces cholesterol according to what it perceives a need for.