If your idea is so great, why hasn’t anyone else presented it to the world?
If your idea is so great, why hasn’t anyone else perfected it for general use?
If your idea is so great, why hasn’t anyone else executed on selling it to the masses?
Answer those questions, and you will have a true sense of that idea’s actual degree of difficulty to bring to life . . . and how much work it may take for you to bring it to life.