Google Does Not Use Bing's Index When It Has No Results

I found a super interesting question on Twitter the other day where someone asked, would it be possible for Google Search to use Microsoft Bing's index when Google has no results for a query. Like Bing would be Google's supplemental index. The answer is no, obviously but it was a new question I've never seen asked before.

from Search Engine Roundtable https://ift.tt/YGe8uCS