Show, don't spec.
For product people, vibe coding's biggest win is the prototype: something stakeholders and customers can click, days before any developer time is spent.
Clickable mockup
Hours
Screens that link together. No real logic.
Answers: “Is this the right idea?”
Working prototype
A Day Or Two
Real behaviour, fake data.
Answers: “Does this flow work?”
Pilot
A Week Or More
A few real users, with guardrails.
Answers: “Will people use it?”
Prototypes answer questions. They're not the answer.