If you’re in New Zealand, you can’t miss that it’s election night.
Some of you might prefer to try watch something else, maybe.
In this TED lecture, A guided tour of the Ghost Map, Steven Johnson gives and excellent presentation of key aspects leading up to and including John Snow’s famous map centred on the Broad Street pump in London. Although about a dark subject–cholera–his talk is laced with black humour. (British, of course.)
I’ll leave you to it.
Of course, this isn’t long enough to take all election night. Try the TED website for more.