You might want to move this to the discussion section, then; unadorned links like this are generally not considered appropriate to the main LW section.
(You can move it by editing the article, then changing where it's being published to.)
Yep. I would downvote this, but it's already invisible on the top-level page.
http://vimeo.com/22099396
What do people think of this, from a Bayesian perspective?
It is a talk given to the Oxford Transhumanists. Their previous speaker was Eliezer Yudkowsky. Audio version and past talks here: http://groupspaces.com/oxfordtranshumanists/pages/past-talks