[DC 86]

In any economic endeavor, the rich get richer. It's virtually impossible to compete for the top spot if you aren't in it already.

This cynical comment is so absurd that perhaps it doesn't merit a response, but I'm still surprised that nobody has commented. The entire economic history of the United States is literally based on entrepreneurship and industry disruption. But in case we need obvious examples:

I suppose IBM with 85% market share in the personal computer market at one point could never be toppled by upstarts founded in garages, to the point that they eventually stop manufacturing the product entirely.
I suppose it's impossible for General Motors (just under 50% market share in 1980) to have sold fewer cars in the US last year than Toyota (6% market share at the time).
I suppose it would be impossible for Altavista not to continue to reign supreme in the search engine space, just as MySpace will indefinitely exploit its dominance of the social media segment.
Inconceivable that taxi medallions won't make their owners richer every year since it's impossible for an alternative mode of mass market private transportation to emerge.
Unbelievable that movie studios wouldn't continue to print money, and that the most successful studio of them all (MGM) would have to declare bankruptcy and be acquired by an online retailer and content streamer.
Pan Am, TWA and Eastern not only don't dominate U.S. air travel, they don't even exist anymore. The airline with the highest market cap in the world is Southwest, which was basically a regional airline until about 25 years ago.
Obviously there are unlimited examples, even without resorting to cotton kings and railroad barons.

[DC 86]

In any economic endeavor, the rich get richer. It's virtually impossible to compete for the top spot if you aren't in it already.

This cynical comment is so absurd that perhaps it doesn't merit a response, but I'm still surprised that nobody has commented. The entire economic history of the United States is literally based on entrepreneurship and industry disruption. But in case we need obvious examples:

I suppose IBM with 85% market share in the personal computer market at one point could never be toppled by upstarts founded in garages, to the point that they eventually stop manufacturing the product entirely.
I suppose it's impossible for General Motors (just under 50% market share in 1980) to have sold fewer cars in the US last year than Toyota (6% market share at the time).
I suppose it would be impossible for Altavista not to continue to reign supreme in the search engine space, just as MySpace will indefinitely exploit its dominance of the social media segment.
Inconceivable that taxi medallions won't make their owners richer every year since it's impossible for an alternative mode of mass market private transportation to emerge.
Unbelievable that movie studios wouldn't continue to print money, and that the most successful studio of them all (MGM) would have to declare bankruptcy and be acquired by an online retailer and content streamer.
Pan Am, TWA and Eastern not only don't dominate U.S. air travel, they don't even exist anymore. The airline with the highest market cap in the world is Southwest, which was basically a regional airline until about 25 years ago.
Obviously there are unlimited examples, even without resorting to cotton kings and railroad barons.