Definition
Gateway habit is a small, easy behavior that reliably leads into a larger desired behavior. Putting on the running shoes is a gateway to running; opening the editor is a gateway to writing; sitting on the meditation cushion is a gateway to meditation. The gateway is performed not for its own value but for the threshold it crosses.
The reason it works is structural: the gateway moves the practitioner from the high-friction state of deciding into the low-friction state of being in motion. From there, the larger behavior is much more likely to follow — sometimes voluntarily, often automatically.
Why it matters
How it works
The brain experiences a sharp cost differential between initiating a behavior and continuing one already in progress. Initiation requires decision, motivation, and acceptance of the task; continuation only requires not stopping. A gateway habit pays the initiation cost using a trivial action — one the brain cannot reasonably refuse — and then delivers the practitioner into the easier continuation regime.
Picking a gateway is a deliberate exercise. The candidate must be small enough to be unrefusable, specific enough to be unambiguous, and connected enough to the target that doing it naturally points at the next step. "Sit at the desk" is a gateway to deep work; "open social media on the desk" is not. The discipline is to identify the smallest action that opens the door, and then to perform that action with no negotiation, every time.