Your company will never work, so they say.

When reading about entrepreneuship testimonials, it seems most of us have encountered people saying either: - "Your product already exists" - "You will never find customers" - "I don't see the point" - "It's too expensive" [list goes on] BUT. somehow, we don't listen to them and the company turns out to be a success. Now, what if we'd encounter someone telling us the opposite? - "This is absolutely amazing" - "Check me in, I want that tool" - "Dude, you're gonna get rich" >> Would you take it for granted or would you not listen to them and stay focus on your strategy? My point is, when it is negative, we're asked to look away because it's "bad". So can positive be "bad" too? I'm curious, what do you think?