59
October 2023
THIS ALARMING DISCOVERY was released
in a study last year by palaeontologists at
Dartmouth College in the USA. What was
most surprising is that this reduction in cranial
capacity has only occurred in the last 3000
years.
Some conclusions were that, since the brain
needs a considerable amount of nutrients and
energy to grow and maintain, if we don’t use it, it
tends to shrink in size over generations. This is
particularly true when we look at other creatures
in the animal kingdom. For example, most
parasites like lampreys live in a very comfortable
environment where all their needs are provided
for by their hosts. Lampreys don’t have to think
very much, so they accordingly have tiny little
brains.
Although the size of
the brain is not the sole
determinant of intelligence,
there are other indications
that the humans of more
than three millennia ago
were pretty smart guys.
Early humans had to have
intelligence and abilities we
just don’t need today. The
average early human had to be able to hunt,
find food, build a home, protect his dwelling and
family from predators, plan ahead for the winter
months when resources were scarce, make fire,
invent his own tools, tend to his own wounds,
settle disputes himself and deal with countless
other challenges that modern humans no longer
need to care about.
The fact is, in our modern “civilised” era we
have all become specialists. We focus on our
very narrow fields of endeavour and leave our
other needs to be dealt with by other specialists.
Instead of hunting and foraging for our next
meal, we visit the local supermarket, or even just
order our food online.
We rent or borrow to buy a home, which is built
by contractors and specialist sub-contractors.
If we are threatened by predators, we call the
police or the security company. If our house
burns down, that’s the insurance company’s
problem. If the car breaks down, we have no
clue how to fix it. Indeed, few people even own
a toolbox, let alone can fabricate the necessary
tools. We have maintenance plans and
extended warranties where other specialists will
deal with that.
If we need to remember things or do
calculations, computers do that for us. If we
want to chat with others, no need to trek for
days through the wilds to engage with our
friends and associates. We pull that smartphone
out of our pockets and see and speak to each
other within a couple of seconds. If we hurt
ourselves or get into a
dispute, there are doctors
and lawyers to sort those
problems out.
It’s little wonder we are
growing smaller brains.
Other than for the narrow
purposes of our specialised
careers, we don’t need most
of that lump of mush sitting
in its bony container above our shoulders.
Most of the world’s working population work
for others, for businesses and corporations.
Particularly in the cushy environment of larger
corporations where medical care, pension plans,
transport, a comfortable work environment,
paid leave and the golden handcuffs of assisted
loans provide for all imaginable human needs.
But what about the few who use their ingenuity
to struggle up the corporate ladder from cubicle
to boardroom?
The transition from the ordered corporate
environment to the real world of cut-and-thrust,
dog-eat-dog engagement within the wilderness
of our modern “civilization” is a daunting one for
the budding CEO. The need to swiftly assess
CEOs who
fly make
significantly
better CEOs.