Why you can see it coming and still can't stop it

The short version, first

Most parents know this feeling: you can feel the sharp moment coming — yours or theirs — a few seconds before it hits, and you still can't stop it. Three things are true about that:

1. Seeing it coming and stopping it are two different jobs. Your brain handles them as two separate things, and they don't switch on together. You can have the first one wide awake and the second one already gone.
2. The stopping job is the one that runs out of fuel. Spotting the reaction is cheap and fast. Putting the brakes on it is expensive — and it's the first thing to fade when you're tired, stretched, or running on empty.
3. So the answer isn't "try harder in the moment." By the time you're in the moment, the part that would try harder is the part that's gone. The answer is to move earlier — to the point where a small thing still works.

That last one is the whole guide. It names the shift this serves: responding instead of reacting. Here's what's underneath it — and why "earlier, not harder" is the move.