The famous stock market player Bernard Baruch once said, paraphrasing: Whatever men attempt, they seem driven to overdo. When hopes are soaring, I always repeat to myself that two and two still make four. The main purpose of the market is to make fools of as many people as possible. Today, stories of this lesson being learned by both major VC firms and Elon Musk. Oh, and how North Korean hackers infiltrate companies.