The best way to validate a product idea is to build the product. And even that might not validate the idea itself due to poor execution. The other surrogate (b

The best way to validate a product idea is to build the product. And even that might not validate the idea itself due to poor execution. The other surrogate (but faster) options: - Build a web site and check traction/conversion rates - Create a believable video from prototypes, show it to target customers and attentively watch face/eyes reactions (don't believe in compliments), look for phrases like "can I buy it?" or at least "can I use it now?" - Learn how target customers work and try to build a mental mapping of your idea to their workflow. If you idea makes it significantly better (less tools, less time, etc), then maybe you have something real. - Don't build MVP to validate the idea. They usually suck. In some cases they work, but only for a laser-sharp idea. If you have one, go for MVP.