A Bubble That Broke the World

What caused the stock-market crash of 1929 and the Great Depression that followed? This book blows away the conventional interpretations, not only in its contents but that the book exists at all. The Bubble that Broke the World was written in 1931. Author Garet Garrett ascribes the crash to the pile-up of debt, which in turn was made possible by the Federal Reserve's money-printing machine. This created distortions in the economy that cried out for correction.
So what is the answer? Let the correction happen and learn from our mistakes?