What is interesting about the AI/LLM hype-cycle/bubble is how it can support so many entrants and players, like Cursor AI, Open AI, Cline, Gemini, Claude, Grok, CoPilot etc., and each carving a niche and a high valuation. THis is is in contrast to social networking, in which Facebook was the overwhelming dominant player, followed a distant second by LinkedIn. (Instagram was bought out.) Or Yahoo vs. Google. But now it's like a dozen companies, and each worth a lot and not as interchangeable, as seen with search engines or social networking. Facebook was the clear and dominant winner and superior platform, and there was little reason to use an alternative, except maybe LinkedIn for job searches.
They don't have a network effect, the cost of switching is almost null, and no model seem to have a clear and lasting edge.
It made sense to be on Facebook, because everyone was on Facebook. It made sense to use google, because for a long while they were head and shoulders above the rest.