This video highlights some of the points from two of histories famous economists Keynes and Heyek. Keynes famously said “We will not have any more crashes in our time.” a few years before the great depression.
Notice how the media and politicians ran to interview and congratulate Lord Keynes’ after he lost. How many times do we have to see the systemic failure of Keynesian economics before we discount those theories as fairy tales.
One of the best books on the subject of basic fallacies in economics is Economics in One Lesson by Henry Hazlitt . It’s very well written and entertaining.