The reasons why you often come up with your best ideas while on a walk or in the shower
Why good ideas often come while walking or taking a shower - ABC Everyday
https://www.abc.net.au/everyday/ever-wondered-why-your-best-ideas-come-to-you-in-the-shower/103243054
Letting your mind wander during moderately engaging activities can take the focus away from specific goals and unlock creativity.