Is a 4 day work week possible? Is this gain traction or just a pipe dream?

deff doable if you run your own thing!
I follow 4dayweekCampaign and 4DayGlobal on Twitter and quite a few companies seem to roll with it well. thing is realizing that 4 days doesn't always equal M-Th. It could be Tu-Fri for some people, or MT-ThF.