The Existentialist Society in Melbourne has published on its website my notes of my talk on Thomas Pynchon earlier this year. It may be that you had to be there - I'm not sure how useful these notes are if you come to them cold. Still, I'm linking to them in the hope that they may be of some value or interest to my readers. Cheers!
(And I now see some typos, etc., but I hope the sense is clear enough in each case.)