Yes: How can we make this possible? No: All I see are definite problems with this Yes: I'm confident we can do this No: Have you thought about how we lack what we need to pull it off? Yes: Do you know what a great need there is? No: How are you going to pull it off? Yes: Can't we just give it a try? No: What if it fails? Yes: What if it succeeds? No: How do we know if it will? Yes: How can we know unless we try?