There is a lot to read on the web. We don't always have time for long-form pieces but we want to read 'this interesting article'.
We either crowd our browser with dozens of tabs, hate ourselves for not having time to read them, or don't read them at all.
What if you could read or write your own summary/cliff note of every web page (with text/video/photos) that you visit?
It could be a browser extension that shows an additional side panel to read or write your own summary of the current page that you are on. Rank all of them by other users. In essence - a shorthand version of the web.
There are of course some problems with this idea, mainly misinformation.