In general, they're right. But you have to be careful not to fall into the opposite trap. Business people and VCs love MVPs and iterative solutions, because th

In general, they're right. But you have to be careful not to fall into the opposite trap. Business people and VCs love MVPs and iterative solutions, because they love to sell first and build later. And others have the obligation to scramble and to actually build the solution. So, by all means, evaluate what you are building first. But that is no excuse for selling stuff that you haven't built yet or don't even know if you can build. Now that I think about it, testing the market and the customer-fit on one hand and testing the technical feasibility and implementing the thing on the other hand are actually both things that salespeople like to skimp on. That's why there are so many half-baked, only half-fitting solutions out there.