But we can never imagine what's next. When they said, "What's the worst that could happen to IBM?" No one would have been taken seriously if they said, "A tiny little computer that sits on your desk."
Google is king of search as it's done now. I've personally seen a startup that can do a very new type of search. Who knows if this will be the "little computer that sits on your desk" but what we do know is that something is most certain to come along.
Disruption is never "if", it's always "when".