==Math edits (Nbarth)== 
 Hi Jack—glad you enjoyed the contributions, and thanks for the kind words. 
 I'd just wanted to understand Clifford algebras, and way lead to way. (Ok, numerical polynomials are not part of that—I just remember Peter May talking about them. But I hope the article grows!) 

 I've thought a lot more about dicyclic groups and understand the connection to pin groups much better, so I'll shortly (tomorrow, I plan) write up the connections (and the center of the pin groups). 

 Thanks again for the support!