Where Consciousness Comes From

Scientific talks can get a little dry, so I try to mix it up. I take out my giant hairy orangutan puppet, do some ventriloquism and quickly become entangled in an argument. I'll be explaining my theory about how the brain -- a biological machine -- generates consciousness. Kevin, the orangutan, starts heckling me. 'Yeah, well, I don't have a brain. But I'm still conscious. What does that do to your theory?'