The fact that nearly 9 of every 10 Fortune 500 companies in 1955 are gone, merged, or contracted demonstrates that there’s been a lot of market disruption, churning, and Schumpeterian creative destruction over the last six decades. It’s reasonable to assume that when the Fortune 500 list is released 60 years from now in 2077, almost all of today’s Fortune 500 companies will no longer exist as currently configured, having been replaced by new companies in new, emerging industries, and for that we should be extremely thankful. The constant turnover in the Fortune 500 is a positive sign of the dynamism and innovation that characterizes a vibrant consumer-oriented market economy.