It would be great to see David Pearce and Ben Goertzel on a panel about reducing suffering and making the world happy and flourishing place.
David Pearce as commented on this video on Facebook.
The Hedonistic Imperative: http://hedweb.com
A Cosmist Manifesto: http://cosmistmanifesto.blogspot.com.au
Science, Technology & the Future: http://scifuture.org