…is one of the most common traps of modern business plans. A speculative, larger outcome is always easier to develop than the smaller, first steps necessary to gain traction. Everyone knows that the grand end will likely be different than planned, so it’s not seen as a promise…just a desired result. But what you’re going to do today and tomorrow to get there…that’s much more real. You’re on the hook and there's no way off.
Best to first focus on how to get the first few people to buy your product or idea. Scale later.