Google is also producing 6 sec you tube video summaries. I think for the 6 to 7 seconds of video to work across audiences, it has to be personalized and custom generated.
I like car chases and she likes romance. She sees what she has a preference for.
I’ve called this deep personalization in one of my medium blogs and used Latin dancing as an example.
Google has been doing shallow personalization for decades, i.e. we see different search results. But I’m talking about different and personalized previews of same result.