The four-day work week was unthinkable, except in science fiction, as recently as five years ago. But one of the many things the COVID-19 pandemic taught us is that the structure of the workplace can change significantly and still be viable. That realization has opened the door to considering a work week of four 10-hour days or even 32 hours as a real possibility. The idea has been around since at least the 1950s; but until recently, it hasn’t been taken seriously.