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Hello, on my right, a man who believes that everything in the universe continues to move

from a state of order to increasing disorder, a law that seems to apply to everything in the universe

apart from his own gorgeous hair. It's Professor Brian Cox.

And on your left, Robyn Ins, a man who used to be an observational comedian until he realized

that an observation in itself is meaningless unless the reference frame is carefully specified.

For example, in the 1970s, everyone thought their mother-in-law was fat. But of course,

she was only fat in her own rest frame. There are observers moving so it's that she would appear

as a larynx-contracted pancake. Exactly. Ultimately, the realisation that mother-in-law jokes

are framed dependent destroyed the Northern Working Man's Club circuit. My mother-in-law so fat.

Well, what speeds she travelling? What? What's your frame of reference? Never mind, I'll do some blue

jokes. All the jokes are blue. They're travelling towards us. And they're travelling away from us.

Then they'd be red-shifting.

Today, we're going to be examining the most complex thing in the known universe,

something we all possess to a greater or lesser extent, our brains.

Are we blasé about our brains? It's the mere act of looking in the mirror and recognising our

own reflection has taken billions of years of evolution. Some say that understanding the human

brain is an impenetrable problem, but is anything fundamentally unknowable. No. There we go, I thought

you might say. To discuss this, we are joined by approximately 300 billion neurons give or take

the odd million that make up our three guests. Firstly, Professor Sophie Scott is a neuroscientist

at UCL's Institute of Cognitive Science and studies the complexity of human communication,

as well as writing a paper on the science of laughter, I believe, so hopefully you should be

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