Earlier quoted context omitted.
I view Discovery as a social problem where the content you want is almost always clustered between a relatively small number of creators, regions, etc. Technically it then becomes less of an indexing everything problem and more of a find a few cornerstone creators, say Khan academy, and occasionally branching out. So to answer your question I don’t thing the cost/benefit for automating discovery is much better then s…
There’s a lot of truth to this but one of the most powerful elements of a discovery algorithm is finding things you completely did not look for, ie Christopher Columbus and the western continents. Like your cornerstones are iOS and recipe videos but you discover the right dance video and it changes your whole life.
E.g., for example (remember example and e)