First off, this is a fucking ad. Article author is Mark Gerson who repeatedly references a book titled "God Was Right" written by... Mark Gerson... Set to release next month.

Second, just some of my "favorite" parts:

Contemporary research has shown that we can enjoy and find meaning in any job as long as we frame it correctly. This is called "job crafting."

Numerous studies have found that there is a productivity ceiling.

The rate of production slowed for the hours 50 to 55.

However, there was no increase in output from hours 56 to 70.

"That extra 14 hours was a waste of time."

And so, we now have the number of what we have termed the "productivity ceiling": It's 55 hours a week.

And here’s the amazing and maybe divine math.
A Sabbath observer can work 10 hours a day for five days a week. He can really only work half a day on the sixth, as he needs to prepare for Shabbat — leaving him with a 55-hour work week.