But the impossibility of getting such straight, logical answers from most civilians/customers is the best part of why Agile exists; only when they see something

But the impossibility of getting such straight, logical answers from most civilians/customers is the best part of why Agile exists; only when they see something can most customers be clear, at least about what won't work. It's not even a question of their being vague - they will often give you flatly false statements because they've never been trained to be precise, think about edge cases, or even what intellectual honesty is.