Blockchain technology has captured the minds of business leaders, entrepreneurs, and policy wonks all over the world. Major media outlets report on the rise and fall of Bitcoin and Ethereum tokens daily. Billions of dollars are flowing into blockchain startups in some form. Large-scale cyber intrusions against crypto exchanges, newly smart machines with wallets, and even semi-autonomous supply chains are capturing the imaginations of enterprises everywhere. But, how well do you really understand the technology, economics and business of blockchain?