But seriously, this is why I don't especially care for minimalism: '[a]t its core, Minimalism is about being aware that every decision you make is a value proposition, and that you need to judge how the consequences fit with your goals.'
Focus is good, but an excess of it results in tunnel vision. It also leaves little room for whimsy or humor.
Another way to think about it is when you do something all the time it becomes a second nature. You don't always have to ponder hard on every decision you make, some decision becomes default choice.
I don't know about minimalists not having a sense of humor (actually first time I heard this) but I agree you are less likely to do things just for shitz and giggles; but I don't know if thats such a bad thing. Some people just don't enjoy doing things for shitz and giggles. I guess it boils down to personal taste and preference?
Focus is good, but an excess of it results in tunnel vision. It also leaves little room for whimsy or humor.