An Idea can come from anywhere, it can be anything. The only thing that matters is how do you execute it.
You need to believe in your idea, put the effort to bring it to life. Many people with amazing ideas let it down for someone else to grab it. Ideas are opportunities, Ideas are game changers, Ideas are everything.
You have to be on the hunt for ideas, anyone can have the same idea of yours, how well you implement is what sets you ahead. I get my ideas from walking around the cities, watching the development, witnessing the changes.
Start hunting for game changing ideas. Be a game changer.