The new competitor would have to be so much better than Google that any given user has a >10% chance of switching, for the competitor to capture a remotely rele

The new competitor would have to be so much better than Google that any given user has a >10% chance of switching, for the competitor to capture a remotely relevant marketshare. That seems fairly unlikely to me. Google gives you what you're looking for immediately for the average query, and anything beyond that is a power user detail not relevant to most people.