"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from now in 2077, almost all of today’s Fortune 500 companies will no longer exist as currently configured, having been replaced by new companies in new, emerging industries, and for that we should be extremely thankful.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, and that dynamic turnover is speeding up in today’s hyper-competitive global economy."
https://fee.org/articles/creative-destruction-builds-prosperity-as-it-topples-big-companies/
https://fee.org/articles/creative-destruction-builds-prosperity-as-it-topples-big-companies/