I was thinking of having a diatribe about how you have to get the angle just right for the pass-through to work because of the planes of disjointness, how the transmutation engine takes care of that, how many a time I've had arms stuck intersecting together and how piston brass is even more complex stuff. But I'm not entirely sure I want to canonize quantum bonds in my notes.

I've been calling what I do with the partial-access purifier "spooky access at a distance" to keep with the quantum theme. Somebody else has already explained how that works by now. Also, the quicksilver that suppresses the input near the end is not optional; suppression is needed to get everything in place for the final bonds, but there's nowhere for a suppressing atom to go--except into a consumption glyph.