Today I was re-digesting good conversations with a friend about
religion and philosophy. I remember being struck by how he could accept both
the theory of evolution and Christianity without the ideas clashing like two
steamships in choppy waters. While natural selection does not rule out a
creator-type god, nor does it specifically prove against one, a quick glance at
the fossil record doesn’t show much teleological guidance or direction.
Christianity relies on, no, needs for there to be a plan at the bottom of all
this. For the religious, there has to be some semblance of direction or for
this all to not be a cruel game or arbitrary experiment.
My friend sees nothing wrong with agreeing that life evolved over
millions of years, accepting that evolution works through tiny incremental
changes in response to environmental pressures, among other factors. For him evolution
is absolutely compatible with the idea that god created all life and is most
definitely still involved in its development today. While there’s no reason to
believe he thinks god created life in today’s form at one distinct time in the
past (as a creationist would), his inclusion of god in the natural process of
evolution strikes is entirely redundant and dangerous for his belief. I want to
try to explain why.
If life can start on its own (a proposition with a growing amount
of evidence, but still no solid ideas on how exactly it might have happened on
this earth) and if it is the case that life plods along slowly, adapting to
environments by itself, no divine intervention necessary, then what role does
an all-powerful creator god play? Sure, god could be responsible for all the
changes. Perhaps it’s god who made the fish begin to breathe more gaseous
oxygen and crawl out onto the dry shore. And perhaps god is causing all the
small mutations making bacteria and viruses so damn resilient to our drugs. And
further, I guess god could even direct where the amino acid groups fit in DNA
structures, or even where the molecules and the very atoms of the molecules
arrange inside an adenosine protein. And sure, god could ensure the strange quantum
rules actually form the atom. God could do it all. God would be pretty tired
from all this micromanagement, but who cares, it’s God we’re talking about!
This is all well and good, but something about this doesn’t seem
right. If god is just a tinkerer, would there ever be a natural process? If god
is in the details, just like his devilish antonym, how could saying god exists
be any different from saying nature exists? Surely if god is at the bottom of
everything like the turtles, then I would have to presume either god is
tinkering with my atoms right now, or god actually IS my atoms. Maybe god and
nature are the same thing, just like the eastern religions have said this whole
time.
However, this doesn’t get us anywhere. If god really is doing
everything, all the time, then what good is science? Of what possible use could
the invented of a word like ‘nature’ be when we already have the word god? They
both describe the same thing. Yet this is what you get if you purport some
divine guidance for evolution. But thinking like this is a complete
non-starter. After all, don’t you want to know HOW god does things? Don’t you
want to know HOW to replicate these phenomena in a lab or in technology? Or is
the idea that god does absolutely everything comforting enough not to care?
If god really is directing evolution, it must be assumed there’s a
destination. God is proposed by the religious to have a plan (although how they
would know of such a thing is beyond me). A direction proposes a destination.
God has to be tinkering with life to get a result. But what is the end-game? Is
it frogs? They’re pretty cool; maybe god has been working steadily for billions
of years to finally create the Green Tree Frog species. Now god can watch them
jump around on leaves and catch insects with their creepy tongues like the
stupid looking things they are. Maybe god is keen to see how they camouflage
themselves on bark or swim goofily through the water with their spindly legs.
Or whatever god wants frogs for, I don’t presume to know what god wants, I’m
not that arrogant. But if the whole purpose of evolution is frogs, then that’s
cool with me.
I guess the Christian faith would have us believe that the ‘special’
homo sapiens is evolution’s destination. With us god’s tinkering was complete;
god had found the end point of evolution, and god was pleased. It makes sense
really; since god came down to earth in the form of a homo sapien then, obviously,
god is some kind of ape. Of course, it also stands to reason that god appearing
as an ape would be the smart move on god’s part if god wanted to talk to other
apes. We’ve no idea if god also appears to frogs as a frog to talk to frogs. Or
if god appears to rabbits as a rabbit to talk to rabbits. Or for that matter we
have no idea whether god has assumed the form of every creature that has ever
lived at any point in their evolution (or god wouldn’t have seen all the
species) just to talk to them and save them from ‘sin’. We simply can’t know
that, and god very well could have.
But if god’s mighty interfering in evolution was to eventuate the
humble homo sapiens, then that’s fine too. Until you do a little more thinking.
And here’s what’s been bothering me:
If you take the premise that the homo sapiens is the destination in the
long, winding road of evolution, then you have to: a) agree to the vast age of
the earth, b) agree with the theory of evolution, c) agree that natural
selection has created and destroyed almost every species that has ever lived on
this earth, and d) [this bit is optional] that evolution by natural selection
is an on-going process.
All but (d) MUST be agreed to if we upright apes are the
destination of god’s wonderful plan for evolution. But (d) is the problem, the
fly in the ointment so-to-speak (biology puns). If evolution is an on-going
process (and we can show definitively that this is the case) then it follows
that evolution has not magically stopped as soon as humans arrived. Natural
selection is still a force that humans, albeit in very minor ways, have to deal
with each day. One of those nasty viruses might catch on a sneeze and destroy a
fair chunk of our population. Or what if a natural disaster (sorry, a ‘god’
disaster) such as a rogue asteroid were to kill millions of people by ploughing
into this spinning rock with the force of a million nuclear explosions?
Anything could happen and humans might come off worse for wear.
That’s fine if you agree that no god controls anything (it’s a
fine thought, but not a nice thought. Reality can be a depressing place
sometimes…) but it’s a problem for any theist who thinks it’s all part of the
plan. Consider what would happen if the next 100,000 years (a mere yawn in
evolutionary time) was to be relatively asteroid-free down here on the third rock
from the sun. A lot of evolution can happen in such a long time span. Granted
it wouldn’t be enough time to see any radical changes in morphology on any one
branch, but it would be enough to encourage speciation within many animal
families. Surely if one agrees with the theory of evolution then it’s clear
that humans are part of the living world and are therefore still subject to the
biting claws of natural selection. In 100,000 years what are the chances of
homo sapiens still being recognisable to us today? Very low I would predict.
That is, such a time-span would probably result in a homo sapiens population
becoming isolated and the inevitable speciation event occurring (perhaps this
happens through some other process than isolation).
The point is, there is no evidence to support the theory that the
homo sapiens are the final play of evolution. We’ve progressed technologically
to the point of being able to offset much of the natural pressures that
directly affect our survival, and the gene pool is large enough to dilute any
significant morphological changes. But this doesn’t mean that evolution has
been in closed off for our species. Our records can only reliably stretch back
around 2000 years, and it shows humans looking and acting in pretty much the same
way as today. But this is only 2% of the years I proposed earlier! What might
occur in our species if we gave it another 98,000 years?
What if humans evolve away from what we are today? Does that mean
that god didn’t intend for homo sapiens to be the final stage after all? What
does that tell you about this god coming to earth as a homo sapien? Did god
come too early? Was god mistaken in telling us we were who god was “most
pleased” with? For that matter, did god also visit homo erectus or neanderthalensis?
Those guys had brains comparable in size to ours, and, in the case of
neanderthalensis, the brain was quite a bit larger than ours. What if humans
evolve away from our current form, will god send down his son as a saviour for
those post-human creatures too? Maybe god will tell them that it is their “sins” that are keeping them from entering heaven and they need to turn their ‘homo whatever’
hearts towards god.
For me, this whole idea of god and evolution being compatible
falls apart when you consider not only how long evolution has been working in
the past, but how long it probably still has to go into the future. Don’t stop
thinking about the next 100,000 years, stretch your mind a bit more and
visualise the next 200,000 or 1,000,000 or even the next 20,000,000. Keep
going, if you can, and think how earth life might look in the next 600,000,000
years. Will homo sapiens still be around then? Maybe (if we can develop
technology to a point where evolution no longer affects us), but I highly doubt
it. I rather think the homo sapien will go the way of the dodo or the
plesiosaur: extinction and into the great rubbish pile of failed species.
If god really is a tinkerer, working away furiously each and every
second on each and every piece of the universe (even the bits we’ll never see
in the Andromeda galaxy; can’t forget those atoms!), and there really is no
natural processes at all, then I guess we just might be the destination of
evolution. But you’d have to be incredibly short-sighted not to even ponder
what things might look like in the distant future.
Maybe it will all end soon, just like the bible-bashers say it
will. Maybe the universe is about to wrap-up and humans really will be the
final stage of our small evolutionary branch on this isolated planet orbiting a
mediocre star in a run-down stellar neighbourhood inside a rudimentary
whirlpool galaxy. Yes, perhaps we are the final scene, but I’m not narcissistic
enough to believe such rubbish.