[pfannkuchen]

Showers are generally considered to be relaxing separately from the “shower thoughts” phenomenon.

Couldn’t the relaxation be a factor in generating shower thoughts?

I suspect that essentially none of our non-ancestors were predated in a hot spring, unlike walking etc, so there may be an environmental cue driven induced relaxation that doesn’t exist for many other activities.

[codyb]

Yea, you relax, and then your brain produces random thoughts about things.

I suspect it's just about getting the space to relax, which is why I frequently have thoughts when staring at the wall, or taking a walk, or washing dishes, or doing any other myriad activities which are relatively easy on brain processing.

[j45]

Solitude is extremely powerful.