It's a curious thing, but top-down projections from our brain's cortical region (the smart part) are far more numerous than the signals that move up our cortical hierarchy.

From a little input, we reply with massive output.

As the Blakeslees' put it in their marvellous "The Body Has A Mind of Its Own" book:

Shinjuku is the largest station in the world.

Every day, the equivalent population of Sydney – 4 million people - pass through the station. Of course, Shinjuku is in Japan. It is a maze of stations, subways, railways, shops, tunnels, bridges - all under the banner "Shinjuku Station."

And it was there – 14 years ago – that I lost my wife.

(oh, & btw – I am a dog.)

People look down on me for doing that. But all the local dog gossip is in their wee-wees – don't you see that? 

You're so boring.

See - you don't understand that I live in another universe. Unlike Jeremy - who is like: