I thought this was more interesting than the other people who left comments. However, the example about Indial and Pakistan was not very convincing at all. Those people were very much influential people and where is the grassroots effect in that. It was more like two heads got together.
An interesting book serfved as a regular sales pitch! Taken into consideration the book has been published in 12th editions! - one could assume that a majority of the attendees had already read it.
Felt a bit like a sales-pitch and was kinda uninteresting if you've already read the book. Nevertheless it was inspiring.
Johannes