What if there is a 50% chance your doctor is wrong?

I was listening to a podcast about the way that disagreements happen. He said, anytime there's a disagreement, no matter what, there are two possibilities.  If there are two people arguing about something, one person could be right, and the other could be wrong. That means roughly speaking, there's a 50% chance that one person is wrong all the time.  This is true of physicians as well. Let's say, I come to your home to see you and help you with a metatarsal stress fracture. You've been told you have a neuroma. But it seems like you have a stress fracture, based on your x-rays or your story. What if there's a 50% chance your doctor might be wrong? Well, that's what we're talking about today on The Doc on the Run Podcast.