The crash was enviable - look into the Tulip Mania, the South Sea Bubble, and the other previous corrections of the market. The problem is Laws usually are playing catch up - take the Bubble Act of 1720, it was not used until after it was too late. The problems are liquidity, fools believing in their overvalued assets (stocks), and other items that fuel the bubble and then when it bursts - the world will have to pick up the pieces.
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The usual thing I call the era between the two wars is "the era of all turns to glass." My argument is that the interwar period was ornamental and gaudy much like an Art Nouveau Tiffany lamp - all it takes is a black cat to come along and tip over the lamp onto the floor. The fall onto the floor is the Stock Market Crash. The war that follows is the cursing at the cat, tossing a shoe at the cat, and readying the dustpan. The Cold War is getting out the superglue and trying to remake the lamp with several missing pieces.