Author Bio A Fool since 2010, and a graduate from UC San Diego with a B.A. in Economics, Sean specializes in the healthcare sector and investment planning. You'll often find him writing about Obamacare, marijuana, drug and device development, Social Security, taxes, retirement issues and general macroeconomic topics of interest. Follow @TMFUltraLong What I'm about to say is going to unnerve some of you, but it's the absolute truth: A stock market crash might be imminent. Since hitting a bear-market bottom on March 23, 2020, the three major U.S. indexes have been virtually unstoppable. Through April 6, 2021, the tech-dependent Nasdaq Composite (NASDAQINDEX:^IXIC) has doubled, while the benchmark