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The human species seems to be very lucky to be alive, and the luck seems to
have started long before the solar system formed. The amount of energy released
by burning stars, and the length of time they burn for, is the result of a
complex balance of physical constants that we determine by measuring the
properties of particles in experiments. If any of these numbers were even
slightly different, stars would not form, would not light up, or would only
burn for a few hours. The same thing applies to atoms forming, and the kind of
chemistry that is possible with atoms. If the physical constants were even
slightly different, only a few kinds of atoms would be possible, and the kinds
of chemical reactions they could be involved in would be so simple that living
beings would not be possible. It's as if the fundamental properties of the
whole universe are finely tuned to allow complex life forms to arise. This
observation is called the "anthropic principle" (the belief that the universe
is friendly to humans), and people who are interested in it talk about it in
two slightly different ways. The "weak anthropic principle" says that the
friendliness of the universe towards complex life forms is not very
interesting. This is because creatures who could notice the anthropic principle
could only appear in the universe if it was able to support them, so it doesn't
matter how unlikely it is - we have to see the mix of physical constants that
allow us to exist. If things weren't as they are, we wouldn't be here to
comment on how simple the universe is.
The "strong anthropic principle" is a different interpretation of the same
thing. It says, "Good grief! The whole universe is wired for life at the most
fundamental level!" In all previous non-magical understanding of the universe
that's a very radical idea. In the picture we looked at in Chapter 4 the strong
anthropic principle isn't radical at all. It's just part of an overall picture
of a universe that's been building towards greater richness and complexity all
along. People who are intuitively convinced of the strong anthropic principle
tend to point to other curious coincidences, and one of their favourites is the
curious way the sizes of the moon and the sun, plus their distances from the
Earth (which actually change over thousands of years as tidal forces steal
energy from the orbiting bodies), combine to make the moon exactly cover
the sun in solar eclipses, during the very era when humanity is ready for such
a vast maths and physics lesson hanging in the sky. The coverage really is
exact too. The brightly glowing gas that makes up the sun's disk is
completely covered, and this makes it possible to view the movements of gas
carried away from the surface by magnetic fields which are completely visible.
Even this bizarre coincidence makes sense if humanity is evolving towards tasks
considerably greater than grubbing around on the surface of one little planet.
The huge science lesson in the sky is one component of a system that operates
at interplanetary scales (at least) falling apart on the backwards arrow, and
our species in its current state is another component.
Some people feel the idea that the apparent size of the sun and moon at this
time in our evolution can be seen as evidence of anything is just too
mind boggling. There's a kind of embarrassment that makes people nervous about
looking into clues that are too blatant, which comes from the tendency to deny
that there is an explanation for things because we don't know
the explanation yet, as described in Chapter 3. So it's worth looking at
another example where the lessons in an equally vast coincidence were
unappreciated for hundreds of years, and the opportunity that we missed as a
result.
As soon as the first approximately correct maps of the Earth became available
in the 17th Century, it became obvious to anyone who glanced at them for only a
moment that the coastline of South America fits into the coastline of Africa,
and to a less blatant extent, the coastline of North America fits against
Europe and Scandinavia. Today we know that this is because the surface of the
Earth is formed of solid plates - called "tectonic plates" that move around on
the molten innards of the planet. Millions of years ago all the Earth's land
masses were one continent, and the forces that pushed them apart are also
responsible for volcanos and earthquakes.
No-one picked up the co-incidence and ran with it for nearly 300 years. Then in
1912 an imaginative geologist called Weneger started to investigate. He found
fossils of the same type of dinosaur in Africa and South America, which are
found nowhere else, and this confirmed what a glance at a map of the world
suggests. So Weneger published a theory which explicitly said that the
continents were once all joined together, and had somehow moved apart. You
might think that would have interested an intelligent species that is regularly
threatened by violent earth movements and explosions of red hot magma, but it
was not to be. Then in 1962, 350 years after we first saw the huge clue,
another geologist called Hess was using magnetometers to investigate the
magnetic field of the sea bed in the mid Atlantic. He found that in the middle
of the ocean, the sea bed's magnetic field is organised in stripes. This is
because the Earth's magnetic field turns upside down every few hundred thousand
years (it's actually on the move at the moment), and rocks that form out of
molten magma pick up the Earth's field at the time that they cool and solidify.
The stripey magnetic field in the middle of the ocean showed that new rock is
always being forced up from deep within the planet, making the Atlantic Ocean
five centimetres wider with every year that passes. It was only when the
missing piece of the puzzle was explicitly found by a person who wasn't even
looking for it, that a culture which tends to deny the truth of anything that
it doesn't know an explicit mechanism for could accept Weneger's suggestion.
Then it was like a Wild West movie where the cowboys are playing draughts and
one of them goes hop, hop, hop and takes all the other cowboy's pieces. It all
dropped into place.
Despite - perhaps even because of - the size of the clue, the world's
geologists didn't go and look for the missing piece of the puzzle until it
turned up by good fortune. That's why we've only been able to make progress in
the study of dangerous volcanos and earthquakes in the last 40 years. If we'd
started a couple of hundred years earlier, we might be more able to warn people
of impending earthquakes and save many lives by now. So the lesson is that we
should be willing to explore vast clues instead of shying away from them. The
worst that can happen is that we'll not be able to find a causal mechanism and
still be puzzled, but that doesn't matter because not succeeding in science
is not the same as failing - even if the deductive mind in isolation
assumes it is!
From the point of view of our modern age, where we rely so much on technology,
it might seem unlikely that pre-technological people could have made progress
in understanding earthquakes even if they had tried. Where the people concerned
are boredom addicted there may be some truth in this, but for the one person in
five who retains some access to their inductive mind without even making
special effort, great things are possible. In the case of plate tectonics we
have evidence of this, dating back to a time before humanity lost its
collective wits. The evidence is found in the legend of the dragon.
Tales of dragons are found in South America, parts of China and Wales. These
are all areas where tectonic activity occurs. (Major earthquakes don't happen
in Wales, but the grumblings of earth movements are often heard - particularly
in Pembrokeshire.) Dragons roar and fly faster than the wind. Earthquakes
propagate very quickly along fault lines, and make a lot of noise as
they do so. Dragons belch fire and smoke, as do volcanos. Dragons live
underground, where they guard their hoards of precious jewels. Precious jewels
are formed by the vast temperatures and pressures deep underground, and are
moved nearer to the surface by earth movements.
When we look at the legend of the dragon like this, we can see that
prehistoric humans were much better at joining the clues together than modern
humans were in 1912. The ancients could form impressions and identify related
things without needing every last detail explicitly spelled out for them first,
which put them in a much better position to go and find the details. When
humans dumbed down (but thought they were getting smarter) they could no longer
make sense of the work in progress called "dragon", so they explained it away
by saying that their ancestors were stupid people who believed in non-existent
animals. It's the same situation that we've seen many times before. Once we've
seen what is there we can go round sticking labels on what we've seen. When we
try to do things the other way around (as the deductive mind acting alone must
always do), we simply enclose ourselves in our own ignorance.
When we look at the fossils of early humans and the bodies of modern humans, we
find plenty of evidence that our species has had a difficult time of things
throughout its entire evolutionary life. We know that creatures we can identify
as our ancient ancestors arose in Africa during a period when it was densely
forested. They were nearly wiped out when the climate became hot and dry, the
forests disappeared and food became hard to find. They survived though, because
some of them learned to stand erect on their hind legs. This reduced the
surface area of their bodies that they exposed to the scorching sun overhead and
helped keep them cool. It also raised their heads above the scrubby vegetation.
This helped them see more possible food as well as predators, and left their
forepaws free to become more nimble. Having their heads up in the breeze gave
them an opportunity to cool some more, which we can see because they evolved
blood vessels that passed outside the protection of their skulls. That's
a crazy thing to have unless a creature has a cooling problem - the only other
animals we know of that did this are some dinosaurs that are thought to have
had cooling problems. To exploit the cooling tower on top of their necks they
started expending more of their precious energy (food was scarce with the
forests gone) pumping blood up to their heads. Now they had a lot to look at
and good blood supply to their brains, so it was cost effective for their
brains to get bigger and make good use of all the visual data they could
gather.
Up until now the tale is no different to the story usually told by many modern
archaeologists who have studied the bodies of early humans, but now we can add a
twist suggested by the relationship between insight and energy described in
Chapter 3 and suggest a readily available evolutionary route to the kind of
heightened intuitive awareness which humans possess - when they have their
minds turned on. Our ancestors had a cooling problem, lots of fractal data
entering their eyes, and a big brain. The nights in their arid African climate
were as cold as the days were hot, and when the fractal data held in those big
brains self detected, they found they could use some of the heat that was a
problem in the daytime to ease the cold that was a problem at night. The more
fractal data they could find to self detect, the more they could perform
exchanges of information and energy with the future. So they added
remembrances of their own life experience to the fractal data coming in
through their eyes, and invented contemplation. A series of chance events had
led to a situation where early humanity's inductive reasoning abilities
received a huge boost. In this picture our special creativity didn't happen
because it produced an immediate benefit to survival compared to the other
animals trying to get by in the desert, but as a side effect of using fractal
self detection to keep cool in the days and warm at night!
A series of improbable but possible events had meant the Dreamtime was
accessible, and humanity could use this together with physical characteristics
that provided flexibility above all else to survive and thrive. The shamanic
peoples such as Native Americans and Australasian Aboriginals who still use
their traditional languages retain this kind of consciousness to the present
time. There were still plenty of close shaves for the species to survive, and
each of them increased our flexibility. Our ability to raise our arms above our
heads in a way that no other monkey does but is good for swimming, the deposits
of fat on our bodies, and the way we waste salt to cool by sweating all suggest
that for a while we had to spend much of our time in the sea. We have no clues
as to the misfortune that led to that period of new ability development.
Genetic studies of mitochondrial DNA (a part of our DNA that we only inherit
from our mothers) in modern humans from all over the world suggest that a few
tens of thousands of years ago our species was reduced to just a few thousand
individuals, and nearly became extinct! A huge volcanic explosion is the likely
culprit on that occasion. Every crisis that nearly killed us developed new
kinds of flexibility. We spread all over the planet, adapting, developing a
digestion that can eat anything and learning to survive everywhere from
the equator to the poles. In this we are different to other kinds of creatures,
which have not had as hard a time during their evolution, but don't build
space stations either.
Here be Dragons
The First Age of the World
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Copyright Alan G. Carter 2003.
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