It is also interesting that at first when I started using Perplexity I expected for it to understand my question semantically and then use some derivative (correct) terms to query the web. The reality is that, probably for the sake of speed, the web search is performed first, and then the results are summarized. This leads in many cases to a mixed, somehow embarrassing set of links where one obviously sees that not all links in the block are relevant. Maybe Google uses something similar and both tend not to present the block of links as distilled correct knowledge blocks. But Google made the top-right block smaller and relying on the scrolling so this embarrassing effect might be less pronounced.

Google or its competitors can theoretically accept(or demand) money for its "Answer engine" to refuse answering certain questions that affect local businesses e.g. paid services (like plumbing services in the article) vs diy instructions based on the location of user.

Of course that assumes people will use only AI for discovery but I suspect that future is not impossible or too far.