Here's a slide from the talk I gave to the group last Thursday. It went well, and it was probably the most relaxed talk I've ever given. I used to be horribly nervous about giving talks, so it's nice that (after lots of self-inflicted aversion therapy) I don't have a problem with giving them and indeed winging it. I'll be giving some variation on the talk to IRL while I'm here, which will hopefully go just as well.