>> No person in a transaction should have certainty about the outcome while the other one has uncertainty. Ironic in view of the top post on HN right now. Doct

>> No person in a transaction should have certainty about the outcome while the other one has uncertainty. Ironic in view of the top post on HN right now. Doctors and surgeons pretty much always have certainty about their part of the transaction (receiving payment for their services) in medical interventions. The patient's outcome tends to be much more uncertain.