cheesy 4-day weeks where it's 4 days x 10 hours; or
real 4-day weeks where it's 32 hours a week and no reduction in pay or production?
I'm gonna read the article now, but I'm really expecting to be disappointed. 4-day workweek isn't about job-sharing; it's about realizing the same output with longer weekends and everyone getting the same pay for the same output.