It would be awesome to see these kind of tools taken to the next level. So far we are "just" doing Zettelkasten in computers.

What I mean by the next level is something like:

- when I pick up a new e-book, show me the chapters that have new ideas that I'm not familiar with yet, so I can skip the things I already know

- let me see how my ideas/opinions on a given topic were evolving through time, which encounters have influenced them

- let me publish a slice of personal knowledge base for others to explore, let me see what my friends published (better social media?)