When humans first evolved from the chimp line, they were — of course — only slightly more advanced than their relatives. It took them 10,000 to 20,000 years to develop the first useful language; about 40,000 years to figure out how to make a sharp knife; maybe 55,000 years or so to develop a method of writing; another several thousand years before they figured out how to make something sensible and portable to write on; another couple of thousand years to invent punctuation; another thousand years or so to figure out how to make more than one copy of a book; another 200 years before the general populace was taught to read, and then in only some places in the world; another couple of hundred years before the invention of the radio, television, the movies; and so on.
In each stage of cultural development (and hundreds of separate lines of development could be tracked like this), the average human had to learn complex new skills and abilities that all involve massive brain change. Our brains are vastly different, in fine detail, from the brains of our ancestors.
We have this wonderful ability to specialise — so powerful that each one of us can actually learn an incredibly elaborate set of ancestrally developed skills and abilities in our lifetimes, in a sense generating a recreation of this history of cultural evolution via brain plasticity, in a highly abstracted form, in every one of us.
With the Internet and contemporary technology evolving at a lightning pace over the past 40 years, the demands of uploading from our cultural history are incredible, and we're seeing more and more people falling off the boat.
Does this mean that our "intelligence" is greater?
The answer to that depends in part on your definition of "intelligence". In classical studies, it was argued that each one of us has a core ability that is not influenced by our education or culture. This may or may not be true, and it may or may not be the case that it is changing as our cultural resources expand (now almost exponentially).
What is getting better, undeniably, is the amount of information, and our access to information, that can contribute to a reasoned decision by our brains.
Is the fact that we do not have to remember, but rather have the world's information at our fingertips, a liability to our intelligence?
Intelligence arises from three basic assets. First, we have a genetic endowment that enables and limits our cognition. Second, we learn a wide variety of basic skills and abilities that solidify, elaborate and crucially support our cognitive abilities, and that can impact the efficiency (accuracy, at speed) of our cognitive operations.
Third, we each load our brains with hundreds of thousands of words and little episodes that we associate with one another in millions or tens of millions of ways.
Developing the skills and abilities that crucially support our refined cognitive abilities, and filling our brain dictionaries and constructing this myriad of probabilistic associations in [various] categories, are products of massive brain change. We are greatly facilitated in increasing this stored repertoire and in being guided in constructing our associative references by books, the media and in a particularly powerful and efficient way, by the Internet.
You cannot make associations about things that you have not recorded. In this respect, the Internet is one of a series of aids developed over the last millennium or so that has increased the operational capacities of the average world citizen.
In my use of the Internet or any other reference source, I do not turn my brain off. I'm gathering information and associating it in my very own computer, right along with my desktop computer and the Internet. If anything, these aids are...
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