There are well known knowns about this coin, and what I found very interesting, because as we know, there are well known knowns we know we know and some we don’t know. That is to say, we also know there are known unknowns and I would guess we know there are some things we do not necessarily need to know.
So, since there are also unknown unknowns and these are the ones we don't know we need to know until its known, the hunt for the unknown will need to continue and I can’t say it clearer than that, if you know what I mean.