What's the fastest way to see if an idea will actually work?

Question

VX-N · Accepted Answer

Build the riskiest part first as a working demo, not the easiest part as a polished screen. If the idea depends on an integration behaving, prove the integration; if it depends on people using it, put something clickable in front of them within days. The first VX-N deliverable — a plan, a mock, or a working demo — lands within 24 hours of the first call, precisely because arguing about a specification in the abstract is slower than looking at something real. A demo that fails in week one is a cheap and genuinely good outcome. The expensive version is finding out in month five.