“If possible find a way to build an extrinsic trigger into your target users workflow that reminds them when they should be using it. Eventually as the user goes through enough loops and builds a habit it becomes an intrinsic trigger and they don't need the reminder anymore.”

Use extrinsic triggers to build habits before intrinsic ones take hold

Nir Eyal's Hooked framework starts every habit loop with an extrinsic trigger. Carter gives two modern AI-era examples: Granola sends a calendar-linked desktop notification before meetings (helpful in its own right), and Whisper Flow places a subtle widget at the bottom of the screen that trains users to reach for voice-to-text. The goal is to run enough loops that the trigger internalizes. Not every product can build an extrinsic trigger into the workflow — but if possible, the habit formation speed advantage is significant.