>All software will be open source, and no one will make money with software. I'm really not convinced. The chart shows Photoshop having an alternative in with GIMP in 1998. And 24 years later, people are still paying lots of money for Photoshop. Pretty much all of these examples are similar. Yes open source has replaced some categories of paid software like VCS, but in a way it just opened up more paid software in th…
As for the general thought about experts, consider web browsers. Advancing the state of the art is extremely expensive, yet the browser vendors are more or less forced to give it away for free. The browsers that either charged money or weren't open source ... for the most part died out.