> Googles moat is so good that it precludes the very existence of viable competing services. So how do you explain the existence of viable competing services?

> Googles moat is so good that it precludes the very existence of viable competing services. So how do you explain the existence of viable competing services? Plenty of people have switched to DuckDuckGo and while it still has a tiny fraction of Google's market share it appears to be viable and growing. Microsoft still operates Bing. Again its market share is tiny but at this point I imagine they continue to operate it because it is somewhat viable and not just for strategic reasons.