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Humans and great apes had a common ancestor about 5 million years ago Humans and monkeys had a common ancestor about 50 million years ago. Nowhere, except in the most illiterate anti-evolution literature, will you find a claim that humans evolved from monkeys.
“Theory” does not mean “hypothesis” or “guess” “Theory” means an organized set of related ideas. If you have a set of previously disconnected observations, and you come up with a possible explanation, you have an organized set of related ideas - a theory. A theory that hasn't been confirmed is a hypothesis. People commonly but incorrectly talk as if theories and hypotheses are the same thing. All hypotheses are theories, but all theories are not hypotheses.
If you find your house trashed and your TV and stereo missing, will you hesitate to call the police because nobody saw it happen? Would you want the judge to dismiss the case just because you only had forensic evidence, but no witnesses?
Maybe not. But once the origin happens, everything after that is history. And historical evidence is preserved in the physical record.
Critics of evolution are fond of citing Piltdown Man or Nebraska Man (actually the tooth of a fossil pig erroneously claimed to be human). These both happened about 100 years ago. They can't cite any cases of false claims of ancient human fossils since then.
“Survival of the Fittest” was borrowed by Darwin from the economic writings of Herbert Spencer. What does “fittest” mean? It's not just a tautology, like saying "the winner of the Super Bowl is the team with the most points." There are objective features that make some creatures fitter than others. If you need to move fast in the water, there is one shape that works best and it's shared by squid, sharks, tuna, dolphins, ichthyosaurs, and nuclear submarines.
This is a claim for which there is a monosyllabic definition: lie. Not error, which implies honest ignorance, but lie, because the people who make this claim are generally fully aware of the fossil record and simply choose to misrepresent it. Archaeopteryx, the earliest known fossil bird for a long time (some recent finds may be earlier) has a thoroughly reptilian skeleton with a bony tail, teeth, and four paws with jointed fingers (not merely the horny skin growths at the middle joint that a few modern birds have). And it has feathers. If that's not an intermediate, what is? More recently, evidence is accumulating that some dinosaurs had hair and feathers. If we'd lived 100 million years ago, we might have put birds, mammals and reptiles in the same class or at least put the divisions very differently from today. Therapsids are the intermediates between reptiles and mammals, crossopterygians and ichthyostegids are the intermediates between fish and amphibians, and so on.
Darwin suggested birds had evolved from reptiles in 1859; Archaeopteryx, a creature with a reptilian skeleton but feathers, was discovered in 1862.
Piltdown Man, the famous early fossil man hoax, actually vindicated evolution. The alleged fossil was controversial from the start precisely because it didn’t match evolutionary expectations. It had a modern human skull but an ancient apelike jaw (altered by someone who knew what he was doing), rather than a mix of features on both parts. It was like trying to fake a 1950 car by mixing parts from a 1980 car and a 1920 car. As more and more hominid fossils surfaced, Piltdown Man was increasingly seen as a side branch even if it did turn out to be genuine. It just didn't match the other finds.
Are you a vegetable or mineral? Humans have hair and nurse their young just like all other mammals. Traits like nurturing, cooperation and monogamy are often favored by evolution because they enhance survival of the species.
Is the following number sequence random: 592653589793238462643383279? It not only looks random: it is random. But lacking in meaning? No. These are the digits of pi beginning with the fourth decimal place.
Random does not mean “meaningless.” The scientific meaning of random is that something cannot be predicted with better accuracy than that predicted by statistics. The phenomenon is its own simplest description. Biological systems are far too complex to describe or predict mathematically. We have incomplete information, and significant events like climate change or asteroid impact are unpredictable.
The Second Law of Thermodynamics is often paraphrased as:
The Second Law of Thermodynamics is about entropy, which is defined as (Heat Absorbed in a process)/Temperature. Entropy can decrease locally if it increases elsewhere. Intuitive notions of “disorder” are of no relevance whatsoever. Any discussion of the Second Law that does not specifically define entropy and show how it relates to evolution is worthless.
Chemical reactions are not random. For example, the atoms in a crystal of table salt are arranged as below, with sodium and chlorine atoms in a strictly alternating square array. If we take the simple-minded approach that we have a one-half probability of getting a sodium or chlorine atom in each spot, the chance of getting 100 atoms arranged as below is (1/2)100 or one in 1.26 x 1030. That's roughly one followed by 30 zeros. According to this reasoning, table salt is impossible.
Na Cl Na Cl Na Cl Na Cl Na Cl Cl Na Cl Na Cl Na Cl Na Cl Na Na Cl Na Cl Na Cl Na Cl Na Cl Cl Na Cl Na Cl Na Cl Na Cl Na Na Cl Na Cl Na Cl Na Cl Na Cl Cl Na Cl Na Cl Na Cl Na Cl Na Na Cl Na Cl Na Cl Na Cl Na Cl Cl Na Cl Na Cl Na Cl Na Cl Na Na Cl Na Cl Na Cl Na Cl Na Cl Cl Na Cl Na Cl Na Cl Na Cl Na
But of course the reasoning is ridiculous. The chances of getting that arrangement of atoms is essentially 100 per cent.
And we know DNA can arise from simpler chemicals because it does so every time your cells divide. Every haircut you get is proof of it. The missing half of the DNA strand is assembled from molecules in the cell fluids.
"But when cells divide, there's a pattern already available" say some anti-evolutionists. Try this: go to the lumber yard and buy the materials for a tool shed. Then put a set of plans on top of the pile, and let me know when the materials spontaneously assemble. I can pour gasoline onto a garbage pile and the molecules in the garbage won't suddenly get the urge to develop into gasoline, even though there's enough carbon and hydrogen to do it. The pattern means nothing. DNA replicates because it can spontaneously self-assemble.
And now, we actually have a study of entropy and evolution, €Ĺ“Evolution and Entropy,€ by physicist Daniel Styer, in the November 2008 issue of The American Journal of Physics. Styer makes assumptions extremely favorable to creationism by assuming that each century, a given organism is only 1/1000 as probable as the same organism preceding century. In other words, you are so different from your great-parents that there is only a probability of .001 of your having been born. He then generously overestimates the number of organisms on earth to estimate a total entropy change resulting from evolution. Finally he examines the entropy passing through the earth as a result of the earth absorbing short wavelength radiation and re-emitting long wavelength radiation, and shows that it is a trillion times greater. In other words the entropy decrease resulting from evolution is a trillionth of the amount of entropy increase the earth radiates into space.
As Styer points out, entropy decreases all the time. A hot cup of coffee left out to cool decreases in entropy. So does a cooling lava flow.
So what? Religions believe lots of things that are true. The prohibitions against stealing and murder all have a perfectly rational basis. Many religions run schools that teach the same things as the public schools. That doesn't mean that math, English and geography are religious doctrines. If evolution is true, what difference does it make that it's a religion for some people?
The Establishment clause of the Constitution forbids imposing practices that arise only from some religious doctrine. It does not prohibit:
So if evolution is a religion, so what?
1. FAULTY CAUSE: (post hoc ergo propter hoc) mistakes correlation or association for causation, by assuming that because one thing follows another it was caused by the other.
example: A black cat crossed Babbs' path yesterday and, sure enough, she was involved in an automobile accident later that same afternoon.
example: The introduction of sex education courses at the high school level has resulted in increased promiscuity among teens. A recent study revealed that the number of reported cases of STDs (sexually transmitted diseases) was significantly higher for high schools that offered courses in sex education than for high schools that did not.
2. SWEEPING GENERALIZATION: (dicto simpliciter) assumes that what is true of the whole will also be true of the part, or that what is true in most instances will be true in all instances.
example: Muffin must be rich or have rich parents, because she belongs to ZXQ, and ZXQ is the richest sorority on campus.
example: I'd like to hire you, but you're an ex-felon and statistics show that 80% of ex-felons recidivate.
3. HASTY GENERALIZATION: bases an inference on too small a sample, or on an unrepresentative sample. Often, a single example or instance is used as the basis for a broader generalization.
example: All of those movie stars are really rude. I asked Kevin Costner for his autograph in a restaurant in Westwood the other evening, and he told me to get lost.
example: Pit Bulls are actually gentle, sweet dogs. My next door neighbor has one and his dog loves to romp and play with all the kids in the neighborhood!
4. FAULTY ANALOGY: (can be literal or figurative) assumes that because two things, events, or situations are alike in some known respects, that they are alike in other unknown respects.
example: What's the big deal about the early pioneers killing a few Indians in order to settle the West? After all, you can't make an omelette without breaking a few eggs.
example: Banning "head" shops from selling drug paraphernalia in order to curb drug abuse makes about as much sense as banning bikinis to reduce promiscuity.
5. APPEAL TO IGNORANCE: (argumentum ad ignorantiam) attempts to use an opponent's inability to disprove a conclusion as proof of the validity of the conclusion, i.e. "You can't prove I'm wrong, so I must be right."
example: We can safely conclude that there is intelligent life elsewhere in the galaxy, because thus far no one has been able to prove that there is not.
example: The new form of experimental chemotherapy must be working; not a single patient has returned to complain.
6. BIFURCATION: (either-or, black or white, all or nothing fallacy) assumes that two categories are mutually exclusive and exhaustive, that is, something is either a member of one or the other, but not both or some third category.
example: Either you favor a strong national defense, or you favor allowing other nations to dictate our foreign policy.
example: It’s not TV. It’s HBO.
7. FALSE DILEMMA: (a form of bifurcation) implies that one of two outcomes is inevitable, and both have negative consequences.
example: Either you buy a large car and watch it guzzle away your paycheck, or you buy a small car and take a greater risk of being injured or killed in the event of an accident.
example: You can put your money in a savings account, in which case the IRS will tax you on the interest, and inflation will erode the value of your money, or you can avoid maintaining a savings account in which case you will have nothing to fall back on in a financial emergency.
8. FAULTY SIGN: (also includes argument from circumstance) wrongly assumes that one event or phenomenon is a reliable indicator or predictor of another event or phenomenon.
example: the cars driving in the opposite direction have their lights on; they must be part of a funeral procession.
example: That guy is wearing a Raiders jacket and baggy pants. I’ll bet he’s a gang member.
9. DAMNING THE SOURCE: (ad hominem, sometimes called the genetic fallacy) attempts to refute an argument by indicting the source of the argument, rather than the substance of the argument itself.
example: There is no reason to listen to the arguments of those who oppose school prayer, for they are the arguments of atheists!
example: The American Trial Lawyers Association favors of this piece of legislation, so you know it has to be bad for ordinary citizens.
10. TU QUOQUE: (look who's talking or two wrongs make a right) pointing to a similar wrong or error committed by another.
example: Gee, Mom and Dad, how can you tell me not to do drugs when you both smoke cigarettes and drink alcohol?
example: The United States has no business criticizing the human rights policies of the Third World nations, not as long as discrimination and segregation continue to exist in the United States.
11. EQUIVOCATION: allows a key word or term in an argument to shift its meaning during the course of the argument. The result is that the conclusion of the argument is not concerned with the same thing as the premise(s).
example: Only man is rational. No woman is a man. Therefore, no woman is rational.
example: No one who has the slightest acquaintance with science can reasonably doubt that the miracles in the Bible actually took place. Every year we witness countless new miracles in the form recombinant DNA, micro-chips, organ transplants, and the like. (the word "miracle" does not have the same meaning in each case)
12. BEGGING THE QUESTION: (petitio principii) entails making an argument, the conclusion of which is based on an unstated or unproven assumption. In question form, this fallacy is known as a COMPLEX QUESTION.
example: Abortion is murder, since killing a baby is an act of murder.
example: Have you stopped beating your wife?
13. TAUTOLOGY: (a sub-category of circular argument) defining terms or qualifying an argument in such a way that it would be impossible to disprove the argument. Often, the rationale for the argument is merely a restatement of the conclusion in different words.
example: The Bible is the word of God. We know this because the Bible itself tells us so.
example: You are a disagreeable person and, if you disagree with me on this, it will only further prove what a disagreeable person you are.
14. APPEAL TO AUTHORITY: (ipse dixit also called ad verecundiam sometimes) attempts to justify an argument by citing a highly admired or well-known (but not necessarily qualified) figure who supports the conclusion being offered.
example: If it's good enough for (insert celebrity's name here), it's good enough for me.
example: Laws against marijuana are plain silly. Why, Thomas Jefferson is known to have raised hemp on his own plantation.
15. APPEAL TO TRADITION: (don't rock the boat or ad verecundiam) based on the principle of "letting sleeping dogs lie". We should continue to do things as they have been done in the past. We shouldn't challenge time-honored customs or traditions.
example: Of course we have to play "pomp and circumstance" at graduation, because that's always been the song that is played.
example: Why do I make wine this way? Because my father made wine this way, and his father made wine this way.
16. APPEAL TO THE CROWD: (ad populum or playing to the gallery) refers to popular opinion or majority sentiment in order to provide support for a claim. Often the "common man" or "common sense" provides the basis for the claim.
example: all I can say is that if living together is immoral, then I have plenty of company.
example: Professor Windplenty's test was extremely unfair. Just ask anyone who took it.
17. STRAW MAN: stating an opponent's argument in an extreme or exaggerated form, or attacking a weaker, irrelevant portion of an opponent's argument.
example: A mandatory seat belt law could never be enforced. You can't issue citations to dead people.
example: What woman in her right mind could truly desire total equality with men? No woman wants the right to be shot at in times of war, the right to have to pay alimony, or the right to have to use the same restrooms as men.
18. SLIPPERY SLOPE: (sometimes called a snowball argument or domino theory) suggests that if one step or action is taken it will invariably lead to similar steps or actions, the end results of which are negative or undesirable. A slippery slope always assume a chain reaction of cause-effect events which result in some eventual dire outcome.
example: If the Supreme Court allows abortion, next think you know they'll allow euthanasia, and it won't be long before society disposes of all those persons whom it deems unwanted or undesirable.
example: If I let one student interrupt my lecture with a question, then I'll have to let others and, before long, there won't be any time left for my lecture.
19. APPEALING TO EXTREMES: A fallacy very similar to slippery slope, which involves taking an argumentative claim or assertion to its extreme, even though the arguer does not advocate the extreme interpretation. The difference between the two fallacies is that appealing to extremes does not necessarily involve a sequence of causal connections.
example: Husband to ex-wife: Well, if you want to be completely fair about dividing everything up, you should get one of my testicles and I should get one of your breasts!
example: Debtor to creditor: Hey, you've already repossessed my car and my television. Why don't you just draw a quart of blood or carve a pound of flesh from my heart too?
20. HYPOTHESIS CONTRARY TO FACT: This fallacy consists of offering a poorly supported claim about what might have happened in the past or future if circumstances or conditions were other than they actually were or are. The fallacy also involves treating hypothetical situations as if they were fact.
example: If you had only tasted the stewed snails, I'm sure you would have liked them.
example: If Hitler had not invaded Russia and opened up two military fronts, the Nazis would surely have won the war.
21. NON SEQUITAR: (literally means "does not follow") in a general sense any argument which fails to establish a connection between the premises and the conclusion may be called a non-sequitar. In practice, however, the label non-sequitar tends to be reserved for arguments in which irrelevant reasons are offered to support a claim.
example: I wore a red shirt when I took the test, so that is probably why I did so well on the test.
example: Mr Boswell couldn't be the person who poisoned our cat, Truffles, because when I used to take Truffles for walks he always smiled and said "Hello" when we walked by.
22. RED HERRING: attempting to hide a weakness in an argument by drawing attention away from the real issue. A red herring fallacy is thus a diversionary tactic or an attempt to confuse or fog the issue being debated. The name of the fallacy comes from the days of fox hunting, when a herring was dragged across the trail of a fox in order to throw the dogs off the scent.
example: accused by his wife of cheating at cards, Ned replies "Nothing I do ever pleases you. I spent all last week repainting the bathroom, and then you said you didn't like the color."
example: There's too much fuss and concern about saving the environment. We can't create an Eden on earth. And even if we could, remember Adam and Eve got bored in the Garden of Eden anyway!
23. INCONSISTENCY: advancing an argument that is self-contradictory, or that is based on mutually inconsistent premises.
Example: A used car salespersons says, "Hey, you can’t trust those other car salesman. They’ll say anything to gt you to buy a car from them."
Example: A parent has just read a child the story of Cinderella. The child asks, "If the coach, and the footmen, and the beautiful clothes all turned back into the pumpkin, the mice, and the rags, then how come the glass slipper didn’t change back too?"