> What if it requires research and new types of engineering? This is even more reason to do market research before sinking a bunch of cost into R&D! The two c

> What if it requires research and new types of engineering? This is even more reason to do market research before sinking a bunch of cost into R&D! The two cases where you can spend big on R&D without much in the way of market validation are: 1. The product is obviously useful, e.g. self-driving trucks 2. You are going for a patent / aqui-hire play Point (1) is particularly dangerous when you get attached to your product idea.