And, don't forget, unlike a hyperlink to the original document, you can link to your own local copy of that document. That means that they can't rug you, by changing the document after-the-fact, as you can archive all of your references and your atomic copy is an absolutely verifiable and signed edition.
That's why I said it's like the Internet Archive, but distributed and uncensorable, and you can take it local. You can keep the content of the references important to the books you read right on your phone, and secure them. You could tell Alexandria to download the book, research paper and wiki page, and all references n layers out, and then pull that and secure the data.
So, that's why the next minor version is where you'll finally see the point of all of this data structure design. When you'll see, why we didn't just add zaps to ePUBs and PDFs.