Exchange, is a SaaS platform that elicits, structures, and shares tacit expertise from senior practitioners. The system provides tools for guided reflection, a central repository for expert insights, and interfaces that embed these knowledge assets into everyday workflows. Law firms and corporate legal teams use the platform to preserve institutional know-how, support training, and make expert reasoning more widely accessible across matters and clients. Let's Think also publishes resources and guidance that explain and apply behavioural science methods to AI-enabled professional work.