I’m pretty sure the GP was talking about one of those theoretical “perfect markets” that mathematicians like because they don’t have all of those messy real-world considerations.
Every real world market is imperfect to some degree. The question is how much. The US healthcare system is staggeringly inefficient thanks to a lack of available information in a grossly over-complicated system.
This is good for people making a profit. Profits are basically impossible to come by in a perfect market. The more imperfect a market is the more opportunity there is for people to make money. The US healthcare system may not be so good at keeping people healthy, but it does provide a lot of value to shareholders.
