[ian0]

Another interesting one is illustrating "depth" of knowledge in a results page. For example, I type "Sagittarius A*". It would be nice to have the results grouped into depth. From initial general-audience explainer videos on youtube down to arvix results. With current news seperated from general informational content.

This works for a lot of niches. For example motorcycle reviews run from entertaining comparisons down to detailed analysis. Recipies for omelettes run from the basics, through adding interesting ingredients, right through to the art of perfectly preparing a difficult to make french omelette.