Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Tuesday, August 16, 2011

Target Practice

So, one of the apologists I keep an eye on has put up another row of rusty tin cans on the fencepost and thinks it's an impenetrable wall of stainless steel. I could use the practice, sure.

Evolutionists eventually admit they cannot explain what caused the universe to come into being.

It's pretty impressive when the very first sentence is wrong twice. Firstly, this is a pure Argument from Ignorance, the ubiquitous foundational fallacy of creationism. If your argument is unsound from the word go, YOU LOSE. Secondly, it conflates the fields of Biology and Physics--technically speaking, the big bang is irrelevant to evolution.

To use their language, they can't explain what caused the Big Bang.

We're working on it. If we already knew everything, we wouldn't need to do Science.

They also admit they cannot explain what caused the evolutionary process to begin.

Ibid. Jesus Christ, we're talking three billion years ago, going off chemical traces in microscopic crystals of ancient rock. Besides, even if our planet was so active that all physical traces of the Prebiotic Ages were erased, it still wouldn't invalidate evolution. Argument From Ignorance a-go-go.

I find this interesting because they claim evolution to be a fact of biological history.

It has been demonstrated to a degree of certainty such that it would be perverse to withhold provisional assent, yes.

We also do not observe Darwinian evolution happening.

Yes we have. The number of observations of evolutionary processes could just about fit into the Grand frakking Canyon. The fact that he says this is ample demonstration of the self-imposed ignorance that makes religion so repugnant.

Oh yes we see examples of changes within species through natural selection, but we have never observed a transformation of one species into another.

Thank you for that. However, evolution predics changes over millennia, so this particular canard is no problem whatsoever. If we did see dogs giving birth to cats, it would disprove evolution. Hell, I'm more familiar with the creationist arguments he's half-remembering, and I have to restrain myself from countering things he hasn't actually said.

We do not observe new DNA information being introduced.


Yes we do. The bacterial synthesis of nylonase required novel information in their genome. That's just one specific example, I've got more.

We see variations on information that was already present in the DNA.

That is one way new information is generated, yes. Oh, WAIT, we're talking about the information that comes predefined as coming from an intelligence, therefore it was intelligently designed. Silly me.

So evolutionists cannot explain how the universe or evolution began.

We've know about evolution for 150 years and the Big Bang for eighty. Exactly when are we expected to have all the answers?

We also do not observe evolution. So how can this be considered a fact?

Because it's the most resoundingly confirmed scientific theory in history. The ONLY people who claim otherwise are people who either don't have an education or are blinded by religious preconceptions.

It sounds more like a faith to me.

You'd like to think that, wouldn't you. So sorry.

We don't see Jesus physically today.

And the next solid evidence he actually did exist I see will be the first.

We cannot explain how Jesus was born.

When an underage Palestinian girl and an amoral Semitic blood god love each other very much, they do a special hug...

We cannot explain how God is eternal.

You got that right, Chester.

However we can explain how faith in Jesus began.


Grab a piece of pie, this is gonna be good.

It began with a well documented and witnessed historical event.

We've got better documentation and witnesses for UFOs, Bigfoot, the Loch Ness Monster, Mothman, the Chupacabra and crop circles. You see, the standards of evidence that allow one to accept Christianity would, if applied impartially, not only lead one to believe all manner of nonsense, but multiple conflicting religious texts as well.

The crucifixion and with that the resurrection of Jesus: Nothing else can explain how the origins of the church.

Tales and legends which grew in the telling of an itinerant rabbi who stepped out of line and was blithely executed, which his followers weren't prepared to accept. Was that so hard?

So the choice is yours. Either way it is a step of faith, however chosing evolution is a greater step of faith than trusting in Christ and His word.

No, not really. On one side, we have mountains of evidence, on the other we have a pile of uncorroborated legends that don't agree, have no provenance, and don't provide sufficient evidence to accept their claims even if taken at face value. Remember what I said about repugnant, self imposed ignorance? Yeah, 'this.'

You may question why both cannot be true.

I believed both for most of my life. Then I realized one side had nothing going for it.

They both cannot be true because Jesus Himself endorsed the writings of Moses as the word of God.

If we were just now getting documentation of what Teddy Roosevelt said at the end of his life, I wouldn't necessarily believe any given part of it. The man was an inveterate self-aggrandizing liar even in his own lifetime.

If we trust in Jesus, then we acknowledge He is God in the flesh.

Gosh, it's so clear to me now.

Moses wrote of the creation in such a way that it cannot be compatable with evolutionary theory.

It's true what they say about stopped clocks, isn't it?

Death did not exist until man sinned in the Garden of Eden.

The flights of fancy to which creationists spin this fairy tail are sidesplittingly hilarious. Tell me, why did the T-Rexes in the Garden of Eden have mouths full of steak knives?

Likewise God said He created each creature after its own kind.

And evolution predicts that any creature will be the same species as its parent. Even when speciation happens for example, to mosquitoes in the London subways, creationists dismiss it to say "oh, they're still the same kind of animal, even though the two populations can no longer interbreed.

It does not say he created one creature that became other kinds.

It doesn't say that you should wash your hands after you wipe your ass. That kind of information would be helpful.

So the question is simple. Trust the word of God or the words of man.

Read: Trust the words of ignorant premodern superstitionists or the word of people who know the first thing about what they're talking about. Give me a minute here...

The words and theories of man are proven wrong everyday, God's word has never been proven wrong.

Genesis is factually wrong in every particular. Exodus is a myth as well, or didn't you know that the Egyptians kept detailed records? A little thing like ten plagues, an entire slave race carrying off whatever they could hold, and the death of a Pharoah whilst riding across a dry seabed--somebody might have written that down? There's little or no archaeological evidence for much of Old Testament history, in places where there really would be if it ever remotely happened. When science disproves something, it's because we've learned something new and can recognize our mistakes. Religion does the opposite, and rejects any facts which contradict its delusion of inerrancy.

Remember you can't know who you are if you dont know who you came from.

And isn't it amazing how much we've learned about human brains, psychology, and cognition--in a word, who we are--since we discovered scientific principles? I know where I stand.

Overall, a pretty sad effort for a fervently ignorant apologist. I really wonder if he's a Poe--he couldn't make this crap look worse if he sat down and worked at it.

Thursday, July 1, 2010

Better Know a Pseudoscience

Science enthusiasts and critical thinkers cannot escape the reality that human culture world-wide is absolutely chockablock with fake science. The word "scientific" has a cachet that I've seen co-opted for homeopathy, energy-harmonized aluminum plates, even Biblical "scientific discoveries" (always good for a laugh.) Science seems to be all about the results, the inventions, the breakthroughs. It's never about the process, the codified critical thinking that keeps those end products from being complete hokum. We humans have a tendency to see what we want to see, to see what agrees with our preconceptions, to see what benefits us and justifies our beliefs. The scientific method is what developed in order to boil out the biases, the fallacies, the unconscious assumptions which corrupt our cognition.

Pseudoscience has been a bugbear of mine for quite some time. So, let's talk about UFOs, and why the pseudoscience of UFOlogy fails on so many counts.

FALSIFIABILITY: UFOlogy prominently displays a hallmark of many pseudosciences—it begins with its conclusion, and then goes looking for whatever disparate facts might support it. One of the most common misconceptions about science is that you start with a hypothesis—a question that you're testing, which you then gather data or do experiments to support. However, one requirement of a good hypothesis is that it is willing and able to be proved wrong. If it is not, you are setting yourself upon a primrose path of Confirmation Bias.

Without falsifiability, your so-called “research” is nothing more than a grand exercise in a fallacy called Affirming the Consequent\. It's easily represented symbolically: [If A=true, then B=true]; [B=true, therefore A=true]. "If a movie is/was shooting a rain scene outdoors, then the sidewalk is wet." The fallacy is to say "if the sidewalk is wet, then a movie is/was being filmed." How many different ways can the sidewalk be wet that don't include such a rare and unlikely event as a movie shoot? How about rain? Automatic sprinklers? The high school cheerleaders doing a car wash down the block? It doesn't follow. Let's say that unexplained lights in the sky are seen nearby, and so you take your "scientific instruments" and you go out to whatever area you believe to be nearby the phenomenon. You believe that if an advanced vehicle were there, its exotic technology would produce…well, "something." You observe that there are some unexpected readings in the local magnetic fields. This is "something," therefore some kind of UFO caused it.

The real scientific method ultimately does most of its work primarily to falsify hypotheses through experiment and observation. It took Thomas Edison years to devise an incandescent filament, to the point where one waggish reporter asked him why he had failed so many times. He had not failed, he said, he had successfully found ten thousand compounds which did not work. If a cotton filament vaporizes under current, then it’s back to the drawing board. There is no such result which would invalidate the presence of a sufficiently futuristic craft, especially when empty-handed results can be explained away as due to the stealthy capabilities of such a ship. How do you generate a well-formed hypothesis, one which has definite criteria to tell you you’re barking up the wrong tree? That’s one more aspect of the scientific method where UFOlogy completely falls on its face.

THEORY: Creationists love to say Evolution is "only a theory," as though it meant something speculative and, if you will, hypothetical. It doesn't. A theory is an explanatory model, based on observations, which generates testable hypotheses and points the way to acquire new knowledge. UFOlogy has no such thing. Going back to the Theory of Movie Production, we can generate multiple testable hypotheses from a basic model of what goes on in such an event. Our hypothetical movie shoot would not only dampen the sidewalk, you’d also find classified ads calling for extras, permits on file with the police and fire departments, a spike in bulk catering revenues, or sightings of heavily laden trucks carrying sets and equipment. Even if you missed the event itself, you’d know what to look for to see if Oliver Stone was in town. You might never know for sure—affirming the consequent prevents absolute certainty, even with a good foundation—but you’d have a start, and you’d figure out you were wrong pretty quick if that were the truth of the matter.


UFOlogy has no theoretical model. What they have instead is a grab-bag of anecdotes, recollections and speculation, and like I said above, any unexplained physical traces. UFOs can be lights in the sky. They can be flying saucers. They can be silvery wreckage entirely consistent with weather balloons known to be in use in 1947, at the time of the Roswell so-called "incident." UFOs can leave circular depressions in leaf litter. UFOs can produce magnetic anomalies. Et cetera et cetera. There is no one phenomenon, no model to provide a framework to unify and explain the observations attributed to UFOs over the years--speculation runs from aircraft as small as three feet across to more than a hundred. There are hundreds of conflicting accounts, and the presence or absence of any given aspects are almost irrelevant.

If our skies are being patrolled by advanced, science-fiction vehicles, whether of human or non-human origin, they seem to come in a dizzying and unpredictable variety, very few of which ever make any repeat performances. You can never predict what a UFO will look like, sound like, or act like. It could leave no trace, or it could scorch the ground. It could seem to be at extreme altitudes, or nearly brush the treetops. UFOs can look like anything, it seems, and if you go looking for them, you can rest assured you’ll never be proved wrong, no matter how implausible the claim. Plausibility is also key, and it’s really both the most important and least intuitive reason that UFOlogy is a non-starter as any serious explanation of strange events.

PLAUSIBILITY: Clarke’s Law, where any sufficiently advanced technology is indistinguishable from magic, is all around us. If you showed a man from 1910 an iPhone, he’d have only the most rudimentary idea of its function and no idea at all of how it works. Heck, I don’t really know how it works. In our lives and most especially in our TV shows and movies, the fantastical is commonplace. It is becoming very counterintuitive to learn that certain areas have very real engineering challenges—where words like “inefficient” and “diminishing returns” take on inflexible, technical definitions quite apart from their everyday usage. In terms of thermodynamics, internal combustion is not very efficient, and so 100 MPG cars are not easy to build without major design sacrifices. Fuel is very heavy and gravity relatively strong, and so it takes massive rockets to lift small amounts of cargo into space. Jet packs are ludicrously inefficient, and all the fuel they can carry is used up in two minutes’ flight. Because the design envelope for a lifting body doesn’t overlap much with the design envelope for a car, any shape which can do both is basically going to stink on ice in whichever role it’s operating. Flying cars will not be filling our skies.

No matter, you say. UFOs obviously must run on technologies yet undiscovered. That doesn’t solve the problems, though. The laws of motion and thermodynamics still hold. A hovering ship must accelerate upwards at 9.8 meters per second, every second, or it will, shall we say, accelerate downwards. That takes power, reaction mass, either to use a jet or aerodynamic forces to stay aloft. No account I’m aware of ever sees a UFO slow too quickly or climb too steeply, stall, and fall to earth due to lack of lift. Nor could any kind of electromagnetic repulsion account for UFOs’ reported aerial antics. Perhaps they use something even more exotic, like antimatter. Sadly, no. The annihilation reaction of antimatter is not free energy. Energy, by definition, is the ability to do work, and flying a UFO through the sky does take a lot of both. So, whatever your energy source, you still have to power an engine—loosely enough defined as “a machine which does the work” in order to get around. That’s leaving aside that antimatter is so stupidly inefficient to obtain and store in the first place, with only a few vast facilities on the planet available to manufacture even trace amounts.

I’ve bent over backwards to avoid the word “alien” or “spaceship” thus far, but don’t really think I need to be coy. UFOlogists who hold out that UFOs may be of human, perhaps secret military origin sound like “cDesign proponentsists” who say the Intelligent Designer might not be God. Who are they kidding? But in reality, alien visitation is hardly any less improbable than the hand of God tickling our DNA. Science fiction has made us ignorant of the real limits of the universe, with hyperdrive-equipped X-Wings and antimatter-fueled starships in every adventure show ever to sew sequins onto black velvet and hang it outside the set’s window.

Space is unimaginably vast—no, I'm saying that literally, your visual cortex can’t accurately model it but I appreciate the effort. Plus, the universe doesn’t just have a speed limit, it actually cheats. To accelerate a midsized car to two-thirds the speed of light would take all the energy in all the power plants in the entire country for one year, assuming you could translate that to kinetic energy with magical 100% efficiency. Two years’ worth doesn’t get you to one-and-a-third lightspeed, because when you go very fast, you start gaining mass, so that it takes much more energy just to get you going faster in progressively smaller increments. It’s not fair! Then, when you get where you’re going, you’ve got to burn exactly as much energy again just to slow down. Your best option is to accelerate constantly to halfway, then turn around and blast your engine in reverse, so that you zero out just as you arrive. It doesn't matter what your engine runs on or what breakthrough your hive-brother Snrxlvbrrr made to build it.

Ships in science fiction don’t seem to lug around gas, either. It took a skyscraper of rocket fuel just to send three humans to our own moon, and almost all of that fuel was used just to move fuel. The more you carry, the more you need just to get what you’re already carrying in motion, for which you need more fuel, for which you need more fuel, etc. Needless to say, we have not seen any decelerating fusion torches pointed directly at our planet from deep in the sky, as city-sized ships, mostly empty fuel storage, decelerate from turnover, coasting to a stop where they detach comparatively tiny habitation modules to flit mysteriously around small rural towns. Interstellar travel is unsexy.

To sum up, we never know whether UFOs are really there or not, we wouldn’t know in advance what to look for if they were, there’s no good reason to think that there are in the first place, and no plausible technology for them to use to get here because General Relativity and the Laws of Motion just aren't amenable to large-scale space travel. I have heard one UFO enthusiast opine that perhaps the laws of relativity are wrong, and faster-than-light travel isn’t known to be impossible, and that about sums up for me that it’s a completely faith-based belief. If they’re so wedded to their preconceived desire that they’re willing to play fast and loose with the fabric of the universe, then their cognitive process is well and truly off the rails.

Wednesday, May 5, 2010

A Moment

Today, while washing my hands, just for fun I laid my thumb and forefinger together and drew them apart until just my fingertips were touching. The film thus encircled by my thumbs and fingers fascinated me for over a full minute. Which is quite a long time, if you were to contemplate simply standing there with the water running.

I marveled at it. So much chaos! So much swirling, turbulent complexity! So unpredictable, so unrepeatable, so unique and strange. And yet a moment of beauty. I saw bands and hurricanes of color, fuchsia and teal; oxblood and goldenrod; cobalt and argent and emerald.

I mused over how such transcendent complexity emerged from such simple elements: The interaction of water and detergent, whose properties are so simple and even naturally occurring. The movement of liquids confined in two dimensions. The wavelengths of light captured from the fluorescent tubes overhead. Even as I watched, even as I held my hands at a slight angle to catch the light, I saw order emerging, after a fashion. The swirling colors differentiated, organizing themselves into bands which, though storms and vortexes troubled their borders, were nevertheless distinct. Near my thumbs, chartreuse and ruby currents danced around each other. Above them, an almost-crimson in a shade I'd never seen and didn't know existed. Above that a deep blue, and above that, a triangle of straw-colored light nestled under my forefingers.

Reluctantly, I slowly opened my fingertips. I watched the film pull on the foam that held its rim, sliding the tiny bubbles aside until they parted. And then it was gone, as though it had never been. It never needed to have been there in the first place. Its unique beauty would never be captured or seen again, and no part of it remains except the memory of a moment.

Any further implication is left as an exercise for the reader.