It’s easy to lay the destruction of Wall Street at the feet of the CEOs and directors, and the bulk of the responsibility does lie with them. But some of it lies with shareholders and the whole model of public ownership. Wall Street never has been—and likely never will be—paid primarily for capital preservation. However, in the days when Wall Street firms were funded primarily by capital contributed by individual partners, preserving that capital in the long run was understandably a higher priority than it is today. Now Wall Street firms are primarily owned not by partners with personal capital at risk but by demanding institutional shareholders examining short-term results. When your fiduciary duty is to manage the firm for the benefit of your shareholders, you can easily persuade yourself that you’re just balancing risk and reward—when what you’re really doing is betting the firm.

As we work our way through the wreckage of this latest colossal bust, our government—at our urging—will go to great lengths to try to make sure such a bust never happens again. We will “fix” the “problems” that we decide caused the debacle; we will create new regulatory requirements and systems; we will throw a lot of people in jail. We will do whatever we must to assure ourselves that it will be different next time. And as long as the searing memory of this disaster is fresh in the public mind, it will be different. But as the bust recedes into the past, our priorities will slowly change, and we will begin to set ourselves up for the next great boom.

A few decades hence, when the Great Crash of 2008 is a distant memory and the economy is humming along again, our government—at our urging—will begin to weaken many of the regulatory requirements and systems we put in place now. Why? To make our economy more competitive and to unleash the power of our free-market system. We will tell ourselves it’s different, and in many ways, it will be. But the cycle will start all over again.

So what can we learn from all this? In the words of the great investor Jeremy Grantham, who saw this collapse coming and has seen just about everything else in his four-decade career: “We will learn an enormous amount in a very short time, quite a bit in the medium term, and absolutely nothing in the long term.” Of course, to paraphrase Keynes, in the long term, you and I will be dead. Until that time comes, here are three thoughts I hope we all can keep in mind.

First, bubbles are to free-market capitalism as hurricanes are to weather: regular, natural, and unavoidable. They have happened since the dawn of economic history, and they’ll keep happening for as long as humans walk the Earth, no matter how we try to stop them. We can’t legislate away the business cycle, just as we can’t eliminate the self-interest that makes the whole capitalist system work. We would do ourselves a favor if we stopped pretending we can.