Many think that they understand the secrets to the success of the biggest tech companies: It’s the platform economy, or network effects, or some other magical power that makes their ultimate world domination inevitable. Investment banker and professor Jonathan Knee argues that the truth is much more complicated, explaining what really makes the biggest tech companies work: a surprisingly disparate portfolio of structural advantages buttressed by shrewd acquisitions, strong management, lax regulation, and often, encouraging the myth that they are invincible to discourage competitors. By offering fresh insights into the true sources of strength and very real vulnerabilities of these companies, Knee shows how investors, existing businesses, and startups might value them, compete with them, and imitate them.