I'm very grateful that I came across this article.

For a long time now I've been struggling with balancing work and life. I've recently started playing with the idea of exchanging a pay cut for a 4-day work week (I haven't brought it up to my employer yet though). It seems obvious now, but I haven't previously considered using my vacation days to do a test run.

Most of the points in the article are solid, but the one about improved focus struck me as odd. It seems that the author is conflating the change in work hours with a change in his process. Even without any schedule changes, you'd still benefit from thoughtfully planning your day out. Then again, maybe less time forces you to be more proactive.