Abstract

Since Richard Dawkins ' The Extended Phenotype got me to thinking about copying units in the mid-1980s, I have been trying to define a cerebral code by searching for what can be successfully replicated in the brain's neural circuitry, a minimum replicable unit. I indeed found such circuitry. But to explore creativity in higher intellectual function, I wanted to see if the resulting copies could compete in a Darwinian manner, the process shaping up quality as it goes. And that forced me to try and boil down a lot of evolutionary biology, attempting to abstract the features that were essential from those that merely contributed to speed or stability. This isn't the place to describe the neural outcome -- it's in The Cerebral Code and, more briefly, in the seventh chapter of my other 1996 book, How Brains Think -- but this does seem an appropriate place to review what I started calling "The Six Essentials." They seem applicable to a wide range of problems within memetics9 as the field attempts to cope with evolutionary models of information transmission. For a more.