This neoclassical model of efficiency was not how Adam Smith, other classical economists and 20th century thinkers in the classical tradition – like Friedrich Hayek – analyzed markets. On the contrary, they focused on adjustments and changes.
The problem is that the mathematical confection is confused with real markets. The theory is kaput; markets would work if perverse interventions could be kept down. Maybe one day people will look back and see much of today’s policies in the same light as we regard medieval medicine—at best useless, at worst deadly. Whatever problems markets have on their own, their ability to survive endless wrong-headed interference shows the power of spontaneous orders where free action by millions of people brings about – not fairyland – but the best that can be achieved.