2 ms·Since when does "Have you built a prototype yet?" matter when talking about if your idea is good?by rw 17y agoSince when does "Have you built a prototype yet?" matter when talking about if your idea is good?jmonegro 17y agoTo make sure it's easily feasible, with low entry barrier and risk.seldo 17y agoIt's not a pass-or-fail question. But if you have a working prototype, then it makes it more likely your idea is practical. If you don't, then what you're trying to do might not even be possible.