As debate about whether ObamaCare is a good idea continues, rejecting four major misconceptions about healthcare is crucial to any chance of our eventually emerging with a better system. In the wake of the Supreme Court’s ObamaCare decision, we must refocus. The Court’s decision was never about whether ObamaCare was a good idea, only about whether it was constitutional. The Court found a convoluted way to uphold the law.That’s done, but the debate on whether ObamaCare’s provisions are good ideas will continue. To date, this debate has been unable to shake off a lot of mythology—things believed about healthcare and...