One study calculated that if we went back 10 generations and did the work for their cousins and the cousin’s descendants, there is the potential for about 8 million people if there were only 4 children per family. Many had much larger families. If you have done 8 million names perhaps you are done and can help other people. But if you haven’t done 8 million names, there are names to find.
Good one, Elder Packer. The rest of the talk is here, and it is a good one: https://www.lds.org/topics/family-history/rootstech/elder-packer?lang=eng&cid=facebook-shared