So I think this is true, but it is not necessarily a terrible thing. It is one thing to memorize a summary of a book. It is another to engage with and apply the ideas in the summary. The goal of a book is to hopefully give you enough time and space to do that.

Unfortunately, most of the books I've read just have the extra material as filler, and don't lead to much engagement. It was just anecdotes like "the nurses in hospital X reported that their bosses were 30% assholes, and in hospital Y they were 96% assholes, so it's no wonder hospital X saved 49% more patients!" and other non-sequiturs like that.

Whats the site?

There’s a good site that does this called Blinkist. https://www.blinkist.com/en/about/

You’ll need a subscription or trial to Blinkist if you want to view anything other than their daily freebie.

This was years ago, and there wasn't much interest so I took it down.