That wouldn't solve the problem of mixing up multiple people. But the first problem most people have is probably actually that it pulls up a person that is more famous than who they were actually looking for.
I think Google does have some type of knowledge graph. I wonder how much AI model uses it.
Maybe it hits the graph, but also some kind of Google search, and then the LLM is like Gemini Flash Lite and is not smart enough to realize which search result goes with the famous person from the graph versus just random info from search results.
I imagine for a lot of names, there are different levels of fame and especially in different categories.
It makes me realize that my knowledge graph application may eventually have an issue with using first and last name as entity IDs. Although it is supposed to be for just an individual's personal info so I can probably mostly get away with it. But I already see a different issue when analyzing emails where my different screen names are not easily recognized as being the same person.