If your strategy only lives in your head, it's not a strategy.
It's a hope.
The most brilliant founders I know carry entire business plans in their minds. Every dependency, every contingency, every "what if."
And they're exhausted.
The brain wasn't built to be a filing cabinet AND a processor at the same time.
When you put it on paper, two things happen.
Your thinking gets clearer. And your nervous system gets quieter.
You stop managing the plan. You start executing it.