In long term, there won't be free content for Google to scrape and display in search results knowledge graphs as ad supported / free content businesses shut down. Of course, google can create its own content and does so to feed the knowledge graphs, but it's way more expensive to do so. And the math might not be worth it for google manufacture from scratch all this content.
So then folks won't use google, but will they go direct to Yelp 2030? Will there be Yelp 2030?