Instead of guarding prototypes, build a library of high-fidelity, interactive demos and give sales and customer success teams free reign to show them to customers. This democratizes the feedback process, accelerates validation, and eliminates the engineering burden of creating one-off sales demos.

Guillermo Rauch uses Vercel's V0 tool to build high-fidelity UI components as direct pitches to his team. This moves beyond text-based suggestions, providing a concrete, interactive prototype that communicates vision with perfect clarity, accelerating product development and alignment.

Design and engineering teams should stop treating Figma as the ultimate source of truth. It is a simulacrum. The real source of truth is what customers experience in production. Orienting the entire team around the live product ensures everyone is solving for the actual user experience.

An interaction can look perfect in a static tool like Figma but feel terrible when built. Prototyping allows designers to experience the 'feel' of their work—a crucial step for validating ideas, developing intuition, and creating higher-quality products that you can't get from static mockups alone.

For complex features, a 17-page requirements document is inefficient for alignment. An interactive AI-generated prototype allows stakeholders to see and use the product, making it a more effective source of truth for gathering feedback and defining requirements than static documentation.

High-fidelity, code-based prototypes are replacing static mockups as the primary artifact for design-to-engineering handoffs. At Stripe, engineers can use the prototype's code as a direct source of truth, minimizing translation errors and ambiguity from design to production.

The ability to rapidly prototype with new tools has fundamentally changed meetings at Block. Instead of presenting information via slides, teams bring working prototypes, which allows for real-time interaction, exploration, and deeper, more tangible discussions.

The V0 team dogfoods their own AI prototyping tool to define and communicate new features internally. Instead of writing specification documents, PMs build and share working prototypes. This provides immediate clarity and sparks more effective, tangible feedback from the entire team.

Product reviews are conducted using live demos that the entire meeting can interact with. Team members can fork the prototype in real-time to build on ideas collaboratively, making reviews a dynamic, creative session rather than a passive presentation.