Book excerpt: The stock market is a wild and scary roller coaster ride that investors have tried to tame with superficially appealing but ultimately flawed strategies—technical analysis, modern portfolio theory, CAPM, factor models, and algos. Many have simply given up and settled for indexing. This book explains the fundamental flaws that make so many strategies hazardous to our wealth. There is a better way—what the authors call Investing 6.0—that is simple enough for anyone to use. No fancy math, complicated computer algorithms, or long days are required. This book offers a strategy with a few key principles that all investors and the financial advisors and planners who serve them can use with ease