I'm not sure if anyone else caught Jessica trying to follow up about the serendipitous meetings of people like Sean Parker in the Valley. I think he's completely discounting some of the experiences and chance happenings that acted as a catalyst to Facebook's success.

It goes back to what PG said at YCNYC that apparently he caught a lot of flack for - these types of occurrences, while they happen, are just far too infrequent in other places with less vibrant tech communities.