A WebmasterWorld thread is discussion a recent BusinessInsider piece that says:

Honestly, I love Danny’s When Losers Are Winners: How Google Can “Lose” Search Share & Yet Still Stomp Yahoo. Danny says at the end:

The thread gets into the topic of, can Google grow forever? BillyS said:

I’ve been hearing about the downfall of Google for at least five years now. They dominated search back then, they still dominate. All efforts to close the gap have failed up until now. There is no logical reason to expect that to change. I don’t see a major threat on the horizon. In fact, I could argue that based on history Facebook’s days are limited.

Another person said:

It is a debatable topic, which is why we have forums.

Forum discussion at WebmasterWorld.