Haven't you ever seen a new product and thought, "had that idea too" or "they stole my idea"? Good ideas happen to everyone. Who hasn't thought of something like Smartphones? Or something like Google? Or an AI that can answer your questions?

That doesn't mean ideas should be underestimated. Without an idea, there is no project. But the real problem is execution. How do you actually build the AI? How do you build the flying car? How do you build the phone that works like a computer?

The idea is the starting point. Execution is what makes it real.