A new spin on things

What goes around, comes around? To everything (turn, turn, turn) there is a season? A wild game of Twister? This post will have us consider three different sorts of spin -- none, I hasten to add, of the political variety -- but nary a one of today's topics comes from that teaser intro. And every spin to follow is apropos of this blog.

Well? Are you intrigued?

Down a quantum rabbit hole?To begin, consider the quite limited -- one is tempted to say, "toy" -- nature of the few implementations to...