The best example of this happening successfully that I can think of, albeit in a much narrower scope, is the recent shift in game development. Game engines used to be super expensive to license and tricky to develop for, but just in the past year several of the biggest game engines have become open for anyone to use, and have also made their development tools work really well for people who don't write code. We're not quite at the point where you can make elaborate games just by dragging and dropping, but a lot of serious effort is being put into it. And as advances are being made, we're quickly growing the potential number of developers out there.

This change doesn't necessarily mean there will be much more higher quality content on a global scale, but it will definitely increase the amount of content and shift consumption into narrower scopes by providing many specialized solution rather than one monolith solution for the problems out there.