It’s simple. You need cool people to create a cool product. Average people can only evolve and support a cool product. Cool people don’t like working with aver

It’s simple. You need cool people to create a cool product. Average people can only evolve and support a cool product. Cool people don’t like working with average people. Even more they hate bureaucracy and lack of opportunities and freedom. Big company can’t afford freedom (at risk of ruining what already works). Hence - there is nobody to create new great products anymore. Therefore big companies don’t just fail because of the size, they usually fail when market changes significantly and they can’t adapt (kodak is a perfect example). Some though manage to fail even before that (because people), and some are able to survive market shifts (luck, some good people still around etc, enough money and monentum to fly through turbulence etc).