Like, the Apple Watch example seems easy, but what happened to FitBit? FitBit went all in on your idea. Picked a single use case with a market, delivered on it. Yet Apple swooped in, took the market from them. Why is that?
This is an open question, I don't claim to have the answer. It just seems that in this case, Apple was promising, as opposed to FitBit, that it would bring much more use cases to the user, a smartwatch on your wrist really, that seems like it was the messaging at least.