Denying Evolution is Implicitly Denying That Airplanes Fly


Our choices and uses of words get us into endless troubles among ourselves (speaking about all humanity here).

The word “evolve” connotes development from simpler to more complex, or from primitive to something better, whatever “better” might happen to mean in the context. The word “evolution” connotes something gradually changing from simpler and more primitive to something more complex and increasingly better.

Everyone agrees that living things and their artifacts change. We individually grow and decay and die, our human groups form and fracture and disappear, fashions come and go. Nothing – but nothing – is static and unchanging, not even the most rugged mountain, not continents, not the tilt of the earth’s axis. We know these things now. Time and change mean exactly the same thing. There would be no time if there were no change, and vice versa.

We humans don’t agree yet on the fundamental cause or causes for change. But some of us humans now know the key mechanisms of physical change, through logic and science, and only through them. Energy continues to flow from some unknown starting point billions of years ago. Suns eventually beam energy onto earths that have energetic molten cores. Atmospheres form. Sunlight whips up winds and clouds. Rain. Bodies of water. Energy from sunlight and/or geothermal vents churns up more complex molecules in water and mud. Eventually some molecules self-replicate as ever more complex crystals. After a few billion years, primates and humans emerged here along with self-awareness and science and poetry. No master designer needed. True, there’s an enormous amount more to learn and know about exactly how and when. But we can now predict with increasing accuracy, for example the next three days of weather. Darwin and Wallace predicted in the 1860s that a moth with an extraordinary 18-inch tongue must exist on Madagascar; 40 years later biologists found exactly that. Accurate prediction distinguishes logic and science from belief. Humanity knows that vaccinations can bring down certain people a little or even a lot, but we predict accurately that if not enough people get vaccinated for some dread disease, then far more people will suffer terribly or die, for example with smallpox or polio or (hopefully soon) Ebola.

Some humans don’t accept the above. Instead they apply intuition along with inherited texts and myths to explain the world around them and the visible relentless change in everything. As you wrote in a recent blog entry, we humans have the illusion of free will, that things happen because we choose for them to happen. The multiplicity of religions and gods among humans demonstrates that no one such belief or text or myth could be the sole ultimate truth. In contrast, logic and science are the same everywhere around the planet. The art of engineering rests completely upon logic and science. Believers can ride in airplanes miles up in the sky only because logic and science and engineering were applied carefully with highly predictable (but not always perfect) outcomes: flights across continents, around the world, all the way to the moon and Mars and out towards the stars.

What can we say to people like Pence to help them understand the bedrock truths and facts of logic, science, engineering and prediction? I imagine talking about the Mississippi River. Look at the empty oxbows, the enormous delta south of New Orleans. Did some self-aware entity design these patterns? If you, all-knowing Mr. Pence, were tasked with designing the Mississippi, would you make hundreds of thousands of false starts that leave abandoned side oxbows and dead-end bayous? Or would you just make a perfect Mississippi and be done with it? The last is obviously an absurd notion. There’s no being done with it. We ourselves can see and feel the rains and floods and re-channeling. The Mississippi is an enormous changing entity, writhing and evolving under the flow of energy transformed into moving water. Is the Mississippi somehow “better” today than it was yesterday? Meaningless question. Could be worse today. It depends. And the Mississippi will disappear too, someday.

There is no Theory of Evolution, really. We’re stuck with those words right now. The bedrock truth is, everything changes always and everywhere, all things are interdependent, some things happen to persist in their current environment while other unlucky things wither or die. To deny Evolution is to deny logic, science, engineering, prediction, and commercial airline flight. One might accuse the deniers with being freeloaders or parasites or worse, taking the fruits while rejecting the toil and the blood and suffering invested by millions of humans, Galileo and so many others, to bring us, with many fits and starts and backtracks, this far out of the darkness. We cannot, we must not allow ourselves to sink back into that darkness.


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Filed under Evolution, Politics, Science in the News

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