I don't know, but that is what is argued in this interesting contribution to the Donation Coder Forum. You may have noticed that my previous post reacts to some of the requirements that are declared to be mandatory (even before it appeared in the Forum). The reason for this is that the contribution was first posted in a slightly different form as a comment on My Zettelkasten. Much to my regret, it was, however, deleted again by the author.
Since I receive an e-mail from Blogger with the contents of every comment (including those that are later deleted), I had the pleasure of reading this contribution a long time before anyone else.
Obviously we disagree, but perhaps the differences are worth discussing further.
Let me make two comments: (1) I am not sure whether integration with Windows and other Microsoft programs is really that important. I am not sure either how important this OS (or any of the other existing Operating Systems) will be in the next eighty years or so. Nor do I think that e-mail, sound files, and spreadsheets have any essential place in something that emulates index cards. But be that as it may, my orientation is obviously more academic, textual, and stodgy. (2) I am sure that the author is right in claiming that it is an important feature of OneNote that when you type a "[[reference term]], it will search for an existing Note page in any of the Notebooks (only opened ones, I think) with that exact title, and then link to it, but if there is none, then it will automatically create a new Note page with that title, at the bottom of the section you are currently in, so that you can put in any relevant text later, but meanwhile it leaves you in the text where you were currently writing. These hyperlinked (wiki-like) pages can be moved around and OneNote will keep track of them. If the user is unsure whether "reference term" is correct for an existing hyperlinked Note title, then a search within OneNote for all or some of the terms in "reference term", will find them, with any OneNote page titles bearing the terms being listed first in the search results, which makes it easy to find them." In fact, any good wiki will allow you to do this. And this is one of the main reasons why I do love ConnectedText, for instance.