Honestly sounds like an incredibly interesting event. I'm moving to Toronto this March / April, and would love to attend such events :) 

I am many years late to the conversation, but this is fascinating. I think this is a good framework for explaining why taking moral theories to their logical extremes often yield unpalatable conclusions at odds with our moral intuitions - because they are overpowering our illogical cultural antibodies. It's still a good read after 10+ years :)