Here’s my response to the question from a talk I gave in Ann Arbor in February (thanks, Haju!):
http://www.divshare.com/flash/audio_embed?data=YTo2OntzOjU6ImFwaUlkIjtzOjE6IjQiO3M6NjoiZmlsZUlkIjtzOjg6IjE0NjgyNDQ5IjtzOjQ6ImNvZGUiO3M6MTI6IjE0NjgyNDQ5LThiYiI7czo2OiJ1c2VySWQiO3M6NzoiMTg4OTc1MyI7czoxMjoiZXh0ZXJuYWxDYWxsIjtpOjE7czo0OiJ0aW1lIjtpOjEzMDM4NzAzMzA7fQ==&autoplay=default
And here’s Sarah McLachlan’s: