I’m with Jan-jan on this: it’s a Chi, not an X. Calm down, folks. Particularly those of you with fish that say (transliterating) ICHTHOS on your cars, since you’re using the Chi as well. Which, I suppose, probably doesn’t describe any of my regular readers, but just in case I’ve become a cult classic…
So it’s ten a.m., and all of the gifts are opened. At the moment all four other people in the room are reading books; this is fairly typical for our family gatherings. Outside it’s very, very cold, and so I’m content to be here with my warm, toasty laptop and a nigh-limitless supply of chocolate.
In case anyone cares, it is possible to decompose the complete 3-uniform hypergraphs on 8 and 14 points into STS(7)s. I can’t imagine that many of my readers would, but I’m pretty excited about that right now so I thought I’d mention it.
Peace be upon you all.