The doctor could easily take an X-Ray or MRI and say, “You need surgery on that knee.” Even if the diagnosis is absolutely correct, the ailing patient is likely to be skeptical. He may wonder, “How does he know that already?” “What are my other treatment options?” “Maybe I should get a second opinion.” Regardless, the patient is hesitant at best and more likely skeptical – in large part because the Doctor has provided exactly one option – surgery!