It's amazing to me how much can be written (and published, and rewarded) about something so obvious. Parents, this is why your kids' tuition is so high.
It is nice to have some citeable source for a commonly-believed thing. And it is only one paper, probably most of the writing was gone by some low paid grad students.
If you want to see why tuition is high, look at administrators and construction I think.
> It is nice to have some citeable source for a commonly-believed thing.
Not every claim requires peer reviewed academia before you can have the courage of your convictions.
The people telling you to overwork are conmen and their useful idiots. They play the "your claims require peer revised sources, my claims are the bland common wisdom" game expertly. When they ask for sources, they're just hoping you don't have any, but if you do there's a slick dismissal up their sleeve.
Sure, I don’t need a peer reviewed paper to believe that, but now any researcher who wants to make the claim can just cite the paper, not worry about nitpicking or anything like that, and move on.
The cost is probably like a couple megabytes on spread across a bunch of servers and, I suspect, a semester or so of work. Plus maybe somebody learned how to run this kind of experiment.
