Running on Autopilot

Think about your morning. You probably did not decide to brush your teeth, start the coffee, or check your phone in that exact order. You just did it.

This is not a bug — it is the point. Thinking is expensive: your brain uses roughly 20% of your body's energy, and weighing every small choice would drain it fast. So the brain takes any action you repeat and turns it into a shortcut, freeing your attention for genuinely new problems.