I like this idea.

Is it possible to integrate other sources as some sort of module / building block?

• Perhaps wikipedia as "Basics"?
• or youtube to show an experiment?
• papers: I imagine that for most questions you also would need studies/papers. For some problems ("Is smoking healthy?") there are studies pro and contra. (In this example the pros are obviously paid by tabacco companies.)
  But it is difficult for non-professionals to sort through studies and find relevant ones. (And prove why those are the relevant ones.)