When designers and developers deadlock, a prototype settles what a meeting can't

The advice I gave on LinkedIn: “Based on my experience, breaking deadlocks between designers and developers involves actively listening to the perspectives and constraints of both parties. I find it most effective to hold a meeting with all parties involved. During this meeting, we can revisit the project’s objectives and discuss agreeable solutions. If needed, we can create a proof of concept (POC) to validate the proposed solutions.”

I’d say all of that again. But the line I tacked on at the end — the proof of concept — turns out to be the whole point, so let me promote it.

Listening and re-aligning on objectives is the right way to open a deadlock. But a true deadlock is usually two informed people who’ve already heard each other and still disagree — the designer is protecting the experience, the developer is protecting feasibility, and both are right within their own frame. More discussion doesn’t resolve that. It just gives each side fresh ways to restate a position the other already understood and rejected.

What breaks it is moving the disagreement out of the realm of opinion. A proof of concept does that. “Will this interaction feel sluggish?” stops being a debate the moment you build the thin version and watch it. The POC isn’t there to validate a solution everyone already agreed on — it’s there to manufacture the evidence that a stuck conversation lacks.

So I no longer treat the prototype as the fallback “if needed.” When two competent people are deadlocked, the meeting’s real job is to define the cheapest experiment that would change someone’s mind, and then go run it. You don’t argue your way out of a tie between experts. You measure your way out.