>> You step into the shower, stand under the hot water, the aromas of your shampoo and soap lulling you into a relaxed state. Suddenly, your eyes open – the solution to some problem you’ve been struggling with is miraculously clear! [...] When the brain relaxes sufficiently, creative solutions do appear.

I'm getting the same effect with ... alcohol. Took me a while to realize it and it's not easy (winnings outweigh the losses but it's hard - hangovers that is). But so many times it happened that I got stuck trying with no solution to my ongoing problem (finding algorithms to make money in finance) and I tried walking, taking a break etc. Still nothing. Then in frustration, went on an alcoholic binge and out of the physical pain and mental void of the hangover it came out: a new approach that just occurred to me.

So in addition to Reitoff principle, I'm adding here "Michael's lemma" :) "When adding nothing still doesn't work, try 'filling the void'".

Related: https://www.pinterest.com/pin/360006563975832665/