Power law is a foundational concept in startup investing that describes how a very small number of companies generate the vast majority of returns, while most investments yield little or nothing. This distribution explains why venture capitalists (VCs) are comfortable with frequent failures: a single "power law winner" can deliver outsized gains that outweigh all losses in a portfolio. Unlike linear thinking—where outcomes scale directly with inputs, as in traditional investments like real estate or public equities—venture returns are dominated by rare outliers. For example, an early investment in Uber could have produced a 5,000x return, illustrating the magnitude of such exceptions. VCs, therefore, prioritize the pursuit of exceptionally high-growth opportunities, understanding that the magnitude of wins, rather than the frequency, determines long-term success. This approach is reflected in practices like increasing portfolio size to maximize chances of finding extraordinary performers, a strategy notably employed by accelerators such as Y Combinator.
