I wonder if we will see some perverse incentives emerge to make the AI seem even better. For example, say a well rested, stress free surgeon can have a 1% error rate. Well, lets make the job harder then, fatigue the surgeon, lay many of them off (or just not rehire as they leave) and spread the remainder thin. Make them hit 3% error rate. Then fire the lot because it would be malpractice not to.