"Am I saying that a sizable minority of the world's population has had their brain hijacked by parasitic ideas?"

"Well, it's worse than that. Most people have."

"Here's one of those talks that can change your view of the world forever. Starting with the deceptively simple story of an ant, Dan Dennett unleashes a dazzling sequence of ideas, making a powerful case for the existence of "memes" -- a term coined by Richard Dawkins for mental concepts that are literally alive and capable of spreading from brain to brain... Philosopher and scientist Dan Dennett argues that human consciousness and free will are the result of physical processes and are not what we traditionally think they are. His 2003 book Freedom Evolves explores the way our brains have evolved to give us -- and only us -- the kind of freedom that matters, while 2006's Breaking the Spell examines religious belief through the lens of biology."