Showing posts with label Nature. Show all posts
Showing posts with label Nature. Show all posts

Thursday, 16 July 2009


OK, so many creationists just don't get it - let me spell it out. The Flintstones was not a documentary.

First, let's get something straight. A scientific theory is a well supported explanation of natural phenomena, facts, and data that is has not been falsified, and best explains the data we have. Theories are the upper echelon of science. Theories are not wild-assed guesses, as some creationists like to pretend. Nor are theories simply problematic guesses trying to become laws. Laws and theories are quite distinct things in science and there isn't a hierarchy whereby ideas go along stages, with "law" being the last and best stage.

Also, science changes as new data becomes available. This is not a failing of science, but a strength. It shows a willingness to incorporate the best information we have in formulating the best explanations that we can.

Evolution is a theory. It is well supported by many independent lines of scientific inquiry (paleontology, biology, genetics, geology, etc.) We have many different independent lines of evidence that support it. Evolution is built on facts, many facts, and is the over-arching explanation of those facts. No other alternative "explanation" even comes close (and no, creationism and ID are not theories - they aren't even proper hypotheses). Evolution has been rigorously tested for over 150 years now and it is still weathering the test of time, even though it has made predictions that could have falsified it (like the chromosomal fusion of human chromosomes from our last common ancestor with apes that was predicted and found, for example).

Evolution, as an explanation, is (very simplified) that mutations to the genetic material of organisms provide for variation, which is then selected by nature for survival and the passing on of those genes.

All animals on the planet are just as evolved as we are. We are not more evolved than other animals. Evolution is happening still.

Evolution is not random. The variations that arise do have a random component, but selection is not a random process.

It does not mean that we should see giant flies with 20 wings, or dats (dog/cat crosses). It doesn't mean that we will grow another arm (not unless genetic material for another arm arises and is selected for over say the next 20 million years that is).

Now, why go through all this? It's because I'm constantly amazed at the amount of creationists who know just about nothing about evolution, but are dead sure it's wrong. They don't know what a theory is. They don't know how science works. They don't know how evolution works. They don't even understand the very, very simplistic overview that I just gave above.

But they do know that it all has to be wrong, wrong, wrong.

Do these creationists really think that either virtually all scientists are part of some atheistic conspiracy to dupe the public, or that virtually all scientists are stupid or blinded by atheism and that they, having done no research or any other lab work, somehow know more than the professionals? Any other options?

Sunday, 17 May 2009

god Tingles


The ulnar nerve is the nerve that runs from your elbow to your hand. If you hold your arm out so that your thumb is pointing up, it runs from just behind your elbow to your pinkie and ring finger, along the bottom of your arm. If you bruise this nerve, you can cause some very weird sensations. I know, because I recently did just that. It causes your hand to tingle (mostly located in the pinkie and ring finer and the part of the palm just underneath those fingers). Even though the damage has occurred to my elbow, my brain interprets it as if it were coming from my hand. Pushing on the nerve can have the same effect.

This got me to thinking, that if I were a superstitious person, could I be convinced that I'm feeling some sort of presence from god? Could I think that god is somehow touching me? I've done no damage to my hand, yet I feel this tingle that won't subside. What if it happened to a different nerve and I felt the tingle elsewhere?

If I had knowledge of these nerve points, could I induce these feelings in other people and tell them that it is the hand of god touching them? Yes, I bet I could, and I bet that some people already do this, whether they are aware of the biological explanation or not. This is most likely part of the arsenal of some faith healers out there or others who claim to be able to bring god into your body (or whatever else they claim). And, this succeeds because gullible people are too uninformed about the processes of the body and all too willing to believe that god really is touching them. It's rather sad, actually, that with just a little bit of education, we could shield these gullible people from the charlatans that would take advantage of their beliefs for a quick buck or to push their agenda.

Friday, 13 March 2009

We Are All Animals


"How dare you claim that we are just animals! god made us special!"

Although I don't understand why so many creationists have this sort of reaction to evolution, as I see no reason to take offense to reality or the idea that we are indeed animals. There's nothing inherently wrong with being evolutionarily related to all the other lifeforms on this planet, nor does it take away from us as humans.

Still, how do they deny that every study we do of other animals seems to show that the differences between us are less than we thought? For instance, monkeys floss and teach their young to do the same. Actually, the idea that they teach their young is a huge find, that shows just how close we actually are to our closest cousins.

Tuesday, 3 March 2009

Like a Brick Through a Window


If any of you reading this are familiar with previous commenters on this blog, you may remember someone by the name of "Bud," who has commented here in the past. Bud recently left a new comment after a long lay-off on my god vs. the Unicorns post. It wasn't extremely long, but as with many creationist comments, it is like a brick through a window in that it creates a huge mess and take a lot more words to clean up all the misperceptions and errors in it. So, I've taken the liberty of making a post out of a point by point response to Bud's brick through the window. It's not anything we haven't all seen before, and warning it's long.

you ask for some evidence of God and His creation, well i would like to examine the evidence for evolution first, if that is ok.


I suppose so, but I hope you aren't going to make a god of the gaps argument...

now we have to consider that there is only 2 possible explanations for the existence of the universe:

it created itself
it was created.


Why do I have to consider that, considering that it's a false dichotomy? There are other options out there, including that this universe is an off-shoot of another universe (many worlds hypothesis) that arose from purely natural means (natural to the other universe and maybe ours), that the universe was always there but that we didn't have a representation for time (remember, the laws of physics break down at the singularity), etc. So, I'm sorry, but your assertion doesn't hold weight, and this has nothing to do with evolution.

scientists, like richard dawkins, admit at one time there was nothing.


There is not a single cosmological model of the origin of the universe that starts with "nothing." Please get your facts straight.

for just one protein to be created (assuming there is something to create it from, since the odds are approximately 1 x 10 to the 40,000th power against it. ( btw 1 x 10 to the 50th power is the longest odds ever observed.)


Yeah, those are long odds, and not at all a realistic interpretation of the latest scientific findings. This is a common error among creationists, however. The odds you cite are estimated, ballpark odds for an event that no one is claiming happened, namely the formation of complex molecules ex nihilo. In reality, what happened was the formation of easier molecules (we happen to know that amino acids can and do self-assemble from the Miller/Urey experiments and the subsequent experiments done based on the original) and that these building blocks then formed into proteins and cells. So, yeah, the odds of a cell simply spontaneously forming from nothing are pretty astronomical, but no one actually posits that that is what happened. Oh, and this still isn't evolution you're talking about.

every cellular mutation causes a loss of information stored in the DNA.


This is trivially false. For example, suppose a point mutation causes a T to change to a G in the genetic code. Would you say that's a loss of information? Now suppose that the G mutates back to a T. Is that a further loss in the information? Yet, this is what you are arguing. It's nonsense. Not only that, but you are relying on conflating definitions of "information." Please also see here:

Mutations and Information

skipping millions of necessary and impossible mutations, we come to humans.


So, you are finally going to talk about evolution?

the eyes alone would have taken over 250 million years to form, according to scientists.


This is actually false, as new studies have shown that eyes have evolved multiple times in shorter timeframes, but even if it were, so what? Life has been around for 4.5 bn years, give or take.

not to mention the nose, legs, arms, mind, and reproductive organs.


I fail to see what your point is. Evolution is a process that has been ongoing for billions of years, thus giving ample time for all the emergent features we see today to have evolved. Are you perhaps arguing that it took X number of years for one feature and Y for another, and so on, and that if you add up all those numbers it is an obscenely large number? This would not make sense, however, as all features are all evolving at the same time.

here is another problem, how did this undirected mutation get the direction to create the extremely complex reproductive system of both genders without guidance?


"Guidance" comes from natural selection. When undirected mutations occur, those that are beneficial are selected and outpace those that are not. This is elementary. Also, sexual selection has been around for a long time. And, it's obvious why it would be a good idea. There much bacteria in your body that can lead to illness and death that you constantly have to fight off. Given a set of genes from 2 parents, the bacteria that they pass you are not accustomed to your genetic makeup and give you a head start in the arms race that is taking place inside your body.

the "self creation" theory is proven by scientists who understand the laws of science, to be impossible.


I would say that your strawman version of what you think scientists say is pretty far fetched.

this takes more faith to believe than i am capable of, so i will stick to the belief that there must be a creator.


I'm so disappointed since you went the route of god of the gaps after all. You didn't present any positive evidence for your god, you simply asserted that evolution couldn't a done it, so god musta done it. This may have worked had you accurately presented a true dichotomy, but you didn't. In fact, you made quite a few false dichotomies in there that I simply haven't pointed out, like the implicit assertion that it's either evolution or god.

note: the idea of the universe being eternal is discounted because it would require no molecular movement, creating a virtual heat death.


Note: the laws of physics break down at the singularity level so we can't really say what was there "before" time, which is a bit meaningless anyway, since "before" time can't be measured by any means that we currently have.

please note that i may a little flippant, but, out of respect, i am not being sarcastic.


Please note that I am also not being disrespectful in pointing out your errors and misperceptions. But, I do suggest that you actually look some of this stuff up in a credible source.

Wednesday, 24 September 2008

Regularity


I've recently seen a couple of apologists talk about how Xianity somehow gave rise to science. One of the starting points of their argument is that in the Xian worldview, Xians hold that god created a natural world that is regular and conforms to natural laws that can be studied. Yet, upon reflection, this is a non-sequitor in that it literally does not follow.

Xians believe in a personal god, one that performs miracles. This goes directly against the idea that nature is regular. A god that performs acts that violate natural laws has not created a system that we can take for granted as being regular. Sure, things tend to fall towards the Earth, but who's to say that god won't cause a miracle to happen so that an object I drop won't float in the air in violation of natural law? This creates a situation where we can't actually count on the world to be regular and yield repeatable scientific results.

Wednesday, 23 April 2008

Creationism


I've just finished Dan Dennet's influential book on Darwinism, and passing mention was given to a certain species of rat; they live underground in tunnels and have a queen. When this queen gets grotesquely large from pregnancy she is unable to eat her own excrement (a popular option, it seems, for these rats); therefore she begs for that of other rodents, and sees that it is good.

A type of fly like to propogate their genes by laying eggs. In the heads of ants. When these eggs hatch they turn into maggots. Which eat through the brain of their hosts until they are large enough to survive in the wild.

The ichneumon fly is parasitic in the living bodies of caterpillars and the larvae of other insects. With cruel cunning and ingenuity surpassed only by man, this depraved and unprincipled insect perforates the struggling caterpillar, and deposits her eggs in the living, writhing body of her victim.

Do you still believe in God?