"Open" was a pardigm shift.  It was the word of the year in 2007, with Open ID, OAuth and many other technologies challenging the bit proprietary monopolies such as Microsoft.  Open source, open protocols, open applications became popular.  Although it began a bit before that on the web with Apache and the LAMP stack.  LAMP was used to create facebook in 2 weeks.  Things like Ruby came out and I think that was used in twitter.  20 years later, many have embraced "Open", but most users still prefer to use proprietary.

The new paradigm shift is about to hit us again.  The Agentic paradigm.  Agents are much more than virtual assitance.  You will have all the same structures grow up.  Agentic Source, Agentic Protocols, Agentic applications.  They will have an intersection with Open but will treat Agents and AI as first-class.  Just as the LAMP stack enabled facebook.  The Agentic paradigm will enable combined tools to create whole new generations of software and software stacks.  The next facebooks, googles, netflixes have yet to be created.  It remains to be seen whether they will serve the users or serve big corporations.