My version of it - you have to take the crunchy with the smooth!
My job is often largely done inside my head - millions of thoughts and mulling over of decisions - gazillions of synapses - trying to sort out my world. On a daily basis.
That's why I'm so often exhausted at the end of the day, and why I struggle to communicate with my wife on Saturdays. All that accumulation means I am like Jason Bourne in the car listening silently to the Franka Potente character.
Anyway, it turns out that the mental load of management is primarily around experiencing failure.
Actual failure, sure, but mostly potential failure. Imagining failure in advance. All the current things that could go wrong. And more important, the things you're not doing that will be obvious oversights later. Our brains work overtime to cycle through these, to learn to see around corners, to have the guts to delegate without doing the work ourselves (even though that creates more imagined points of failure). Scan, touch, consider, analyze, repeat.
This is so on the money it's scarey!
I guess that's the binary aspect to the filter process on every thought/potential action during my day - will this work/will this do more harm/is there a better way and so on - imagining failure in advance.
Most times I find the filter works. But not always. And that's okay. None of us are perfect.