[gameman144]

I think this is the point; what we call search today is likely to be dominated by Google, but what we call search tomorrow could be dominated by a newcomer. For instance, map-based search is already a huge step above traditional Google searches for real-world locations and there's no reason to think there won't be more significant shifts in the future as well.

[woofie11]

What we call search was dominated by Altavista before Google. It really didn't take much to break that dominance.

Stable dominance is characterized by things like network effects or similar. Google, despite being willing to use anticompetitive tactics, hasn't really successfully built much of a moat.

Bing didn't do it since at the time, everyone liked Google and hated Microsoft, and Google was an epsilon better.

Today, Google doesn't have that do-no-evil reputation, and it's hard to know what would happen.