>>I learned that in my early coding days in university. Spend a whole night on a problem. Returned afternoon, solved on first look. ¯\_(ツ)_/¯
>
>In my running days (until the late 1980's) if I got stuck I would go out for a short run (30 min). Like magic, what I needed to "see" would pop up without my thinking about it.

Seems that everyone had his own way to visit auntie Emma...