
fredag 19 juni 2009
Norwegians going to hell...

torsdag 17 januari 2008
Is the theory of evolution normative?
A lot of people object to the theory of evolution on normative grounds, that is, because evolution says that people should behave in certain ways. To take a radical example, according to the theory of evolution men who rape has gained some sort of evolutionary advantage, and that is why the behavior still exists in many different species today. Speaking in evolutionary terms an individual can gain fitness through rape. Confused people (Russ Tanner in this video is confused on other issues besides this) who mistakenly thinks that the theory of evolution is normative goes on to argue that according to the theory of evolution, rape is good.
This is of course wrong. The theory of evolution says absolutely nothing about how we should behave. The theory of evolution, in other words is descriptive. It describes what the world is like and the mechanisms that are at work, it doesn't say what the world should be like or whether status quo is good or bad.
So independent of whether you want a communist or a liberal society, whether you want like or dislike a certain behavior that the theory of evolution predicts. Independent of what your opinion is, the theory of evolution can help you get you where you want to go because you can learn important lessons about human nature. Ignoring or trying to deny our natural instincts will just make things harder for you…
Go save the world, but do it using what you know about human nature
Ps: Also see my post "Ethics of an atheist"
måndag 26 november 2007
The God Delusion, Chapter 10 – A much needed gap?

Is a belief in God beneficial? Do we need God in our lives? Richard Dawkins discusses this issue in chapter 10 of the God Delusion. The first point he makes is that, whether or not a belief in God is beneficial in terms of psychological health or whatever, says nothing about the existence of God. There are studies indicating that religious people, on average are happier and healthier than atheists. The difference was not big but it was significant. However, it would be very erroneous to conclude that just because religion is correlated with happiness, God must exist… Dawkins writes:
"Religion's power to console doesn't make it true. Even if we make a huge concession; even if it were conclusively demonstrated that belief in God's existence is completely essential to human psychological and emotional well-being; even if all atheists were despairing neurotics driven to suicide by relentless cosmic angst - none of this would contribute the tiniest jot or tittle of evidence that religious belief is true. It might be evidence in favour of the desirability of convincing yourself that God exists, even if he doesn't."
Personally I do think that the world would be a better place if people would have an evidence based world view. Politicians today often get stuck when religious arguments are brought to the table. Should Jerusalem be in the possession of the Israeli, or the Palestinian's? How do you argue with Bush when he claims that the Iraq invasion was a mission given to him by God? There is just not so much you can say in response to such an argument. To be fair, this was not his primary argument for going to war, but my point stands nevertheless.
I do not believe in God, yet I consider myself happy and I enjoy my life. When I face misfortunes I do not pray to God to help me, rather I try to come up with a concrete and effective solution to whatever it is I am facing. I realize of course that I have been born in a wealthy part of the world and that my miseries are nothing compared to the miseries that the average human being must face, yet even for them I think that it would be better not to rely on God to console and fix things. An additional bonus that you get as an atheist, at least to the extent that atheists do not believe in reincarnation, is that you value your time here on earth more. I do not believe that I will be reborn when I die, therefore I want to make the best of the time that I have here on this planet. For this reason I am also unlikely to end up as a suicide bomber. Only a very religious person would sacrifice something as valuable as his or her own life in order to kill other innocent people.
In short, there are plenty of reasons to be grateful for our time here on earth. One does not need God to have some substance in life. My life is filled with substance, and I think that for most people, even for religious people, the principal sources of happiness lie outside of the realm of religion. I end with these words from the God Delusion which illustrates my point well.

"But could it be that God clutters up a gap that we'd be better off filling with something else? Science, perhaps? Art? Human friendship? Humanism? Love of this life in the real world, giving no credence to other lives beyond the grave? A love of nature, or what the great entomologist E. O. Wilson has called Biophilia"
lördag 22 september 2007
The God Delusion, part 8 – What’s wrong with religion? Why be so hostile

I do not think that religion is the only source of evil in this world. Humans have an instinct to form groups, and to amplify the differences between the in-group and the out-group. I am myself a fan of Manchester United, and for some weird reason I can get a little bit upset when someone criticize a player in the team or something similarly harmless. Now, I would never act on such feeling, however, there are fans or hooligans who in fact get into fights for such reasons, unbelievable as that may sound… I think that mankind will probably always find something to fight about, however, I also think that religion is the worst culprit of all when it comes to creating conflicts between groups. In chapter eight of The God Delusion, Richard Dawkins addresses the very frequent question "what is wrong with religion"?
The danger of Islamic fundamentalism is obvious to most people. Last weekend I watched the movie United 93. Even though I have seen those planes fly into the world trade center thousands of times I still just cannot understand or accept that any human being can plan and execute such a deed which intentionally strikes against civilians, many of whom have had absolutely nothing to do with the miseries that the Muslim world has experienced. To take a plane full of civilians in great despair and then fly that plane right into a building with more such civilians is an act that must require a lot of faith. 9/11 was no zenith of terrorism. According to “The Religion of Peace.com” Islamic terrorists have carried out more than 9500 deadly terror attacks since 9/11.
Islam is not the only religion with blood on its hands though. In Africa, countless massacres has been carried out in the name of Christianity. See for example Joseph Kony (see picture), proclaimed spirit medium and leader of the Lord’s Resistance Army.

So where does religious extremism stem from, what causes it? I have not read any studies on this, and if someone could enlighten me then I would be grateful. However, I think it is beyond reasonable doubt that religion has to take part of the blame. In particular, the problem with almost all religions is that they teach the young that blind faith is a virtue. To doubt in God when there is no evidence is for some reason a horrible crime. As a consequence, religious people often cannot tell you what it would take for them to stop believing. This is one of the things that separates science and religion. Dawkins writes:
But my belief in evolution is not fundamentalism, and it is not faith, because I know what it would take to change my mind, and I would gladly do so if the necessary evidence were forthcoming.
There are well documented differences in peoples' tendency to be open minded. Some individuals are born with a taste for absolute rules and principles and a great dislike for grey-scale ethics and knowledge. One could add to the speculation above that if individuals of this kind, who score low on openness, is brought up in say a Christian family, then it is probable that this individual will become more extreme in his/her faith than the parents. Maybe, unlike the parents, the youngster decides that the bible must be read literally and then he read from the bible that “He that sacrificeth unto any god, save unto the LORD only, he shall be utterly destroyed” (Exodus 22.20), right there you have the birth of an extremist. Dawkins explains it perhaps more elegantly than me when he writes:
The teachings of 'moderate' religion, though not extremist in themselves are an open invitation to extremism.
The religious movement in the United States seems to have abandoned the founding fathers' ideal of a true secular state. The intelligent design movement tries to bring religion into the classroom, a goal which may become a problem for them since the creator is not specified. Meanwhile there are the so called pro-life politicians (ironically, the same politicians tends to be strong proponents of the death penalty), who want a ban on abortion for faith based reasons. The religious movement in America has culminated (I hope) in a group referred to by outsiders as The American Taliban. I can find no difference between their rhetoric and that of Osama Bin Laden. According to Ann Coulter:
"We should invade their countries, kill their leaders and convert them to Christianity. We weren't punctilious about locating and punishing only Hitler and his top officers. We carpet-bombed German cities; we killed civilians. That's war. And this is war."

Anyways, the main problem with faith and the answer to the question "what is wrong with religion" is that it idealizes faith without evidence. It is really hard to argue with someone who merely says "this is what I believe, and nothing can change that". Such an attitude makes it impossible to have discussion that is of any use. I will end with the following quote from Bertrand Russell (see picture) (which can also be found in The God Delusion):
Many people would sooner die than think. In fact they do.
söndag 5 augusti 2007
The God Delusion, Part 6 – Roots of morality

In chapter six of The God Delusion, Richard Dawkins deals with the roots of morality. There seems to be a major concern amongst religious people that should people become atheists there would no longer be any reason to behave morally. After all, why would anyone behave in a good way if there was no after-life reward, and if there was no hell fire, what would stop people from murder and rape??? On the question, "If there is no God, why be good?" Dawkins writes:
Posed like that, the question sounds positively ignoble. When a religious person puts it to me in this way (and many of them do), my immediate temptation is to issue the following challenge: 'Do you really mean to tell me the only reason you try to be good is to gain God's approval and reward, or to avoid his disapproval and punishment? That's not morality, that's just sucking up, applepolishing, looking over your shoulder at the great surveillance camera in the sky, or the still small wiretap inside your head, monitoring your every move, even your every base thought.' As Einstein said, 'If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed.'
So what is the danger associated with atheism and in particular, a belief in the Theory of Evolution? It seems to me that many people mistakenly believe that the theory of evolution teaches us how to maximize fitness and perhaps more dangerously that maximizing fitness is necessarily a good thing…. There is nothing in the theory of evolution which tells us how we should act, that is for us to decide. Dawkins writes:
A great deal of the opposition to the teaching of evolution has no connection with evolution itself, or with anything scientific, but is spurred on by moral outrage. This ranges from the naive 'If you teach children that they evolved from monkeys, then they will act like monkeys…
I have written about this before in my post "Ethics of an atheist", but it is important so I will say it again. I think that the role of the Theory of Evolution is not to tell us how to act i.e. we should not derive our morality from the theory of evolution. Rather, I think, the theory of evolution can be used to make informed guessed about how people are likely to act in various situations. On a larger scale, I think that Evolution can help us predict which policies are likely to succeed as well as which ones are likely to fail because they violate our instincts? I think that in many ways a communistic society, as it is described in theory, would be quite nice. Marx's (see picture) slogan "From each according to his ability to each according to his needs" may be sexist, but aside from that it sounds like a very sensible principle to my ears. Unfortunately I think that a society based on this principle would never work, simply because it is human nature to want more than one need (this is probably the reason it never has worked to)… Largely for this reason I favor a market-based society. For those who are interested in this line of thought I recommend Matt Ridley's The Origins of Virtue (the last chapter is about implications for society). Dawkins writes that:

A great majority of religious people, I am sure, are moral and responsible human beings. However, the following letter to Brian Flemming, as well as countless historical episodes (9/11, Crusades, Inquisition etc), shows that religious belief indeed does not make people immune from primitive "ape like" behavior…
You've definitely got some nerve. I'd love to take a knife, gut you fools, and scream with joy as your insides spill out in front of you. You are attempting to ignite a holy war in which some day I, and others like me, may have the pleasure of taking action like the above mentioned…
Dawkins then points out the absurdity in defending an omnipotent omniscient God. Isn't it enough that all atheists will burn in hell forever after we die? Can't your God just punish us if he wants to, or perhaps this is where your faith breaks down? My advice to those who feel the need to fight in the name of God is, why not let God take care of it, should he exist then it should be a piece of cake…
So where does morality come from? Without going into the details the Theory of Evolution provides a perfectly valid explanation of the phenomenon. In experiments where people are given ethical dilemmas, religious people and atheists give pretty much the same answers, again suggesting that religion doesn't make you more moral... How did morality evolve? Here, to confine the length of this post, I will simply refer to Matt Ridley's The Origin of Virtue, which deals exhaustively with the subject...
söndag 15 juli 2007
The God Delusion, Part 5 – The roots of religion

Ok Richard, now you have spent four chapters arguing that religious faith is irrational and based on invalid argumentation. Say that we believe this, what is the alternative? How can it be that something as irrational and destructive as religion has been apart of every culture since the birth of humankind? Doesn't that suggest that there is something to it? What is your alternative? Why do you think religion is so widespread? These are the questions that Richard Dawkins, author of The God Delusion, take on in the fifth chapter. Dawkins writes:
The fact that religion is ubiquitous probably means that it has worked to the benefit of something, but it may not be us or our genes. It may be to the benefit of only the religious ideas themselves, to the extent that they behave in a somewhat gene-like way, as replicators.
Allotetraploid recently posted a video in which Daniel Dennett (see picture) dealt with this issue. He used the analogy of the common cold. It too has existed in all cultures at all times, since the birth of the human race (and even before that), but we do not say that, "the common cold must be good for something" just because it is so common. You might complain that the common cold is a disease whereas religion is more like a choice, and I would think that is a valid argument if the meme theory is wrong. However, if there is something to memes, then it is definitely a valid argument.
My point here is simply that because something has been shared in a lot of different cultures and for many millennia, it doesn't follow that it is necessarily a good thing. Some people seem to think that just because astrology has been around for so long there must be something to it, but if you look at the evidence this is not case. Religion may exist just because it is beneficial to itself, just like the common cold is good for the bacteria causing the common cold. Plausible as this may be, Richard Dawkins, in The God Delusion advocates a different position, namely that religion is a by-product of another mechanism which is beneficial. Dawkins writes:
Perhaps the feature we are interested in (religion in this case) doesn't have a direct survival value of its own, but is a by-product of something else that does. I find it helpful to introduce the by-product idea with an analogy from my own field of animal behaviour.
In the following paragraph Dawkins introduces the analogy of a moth which, as we all know, is extremely attracted to light. Either they fly into your light bulb a thousand times in a night, making is virtually impossible to sleep, or they come diving into your campfire like a genuine kamikaze pilot. What could possible be the point of this behavior (read here for an answer)? I was told another similar analogy by Mike Majerus in Cambridge. Apparently one of his Australian friends had a garden in which he had lit up a small path using lights imbedded in stones. At dusk, a bunch of clever frogs would appear on these paths standing next to the lights which lit up the path. Insects, because they are also (like Moths) attracted to light would fly towards light and there the waiting frogs would spurt out their tongue and capture a nice meal. Yet the frogs' intellectual capacity did have a limit. One day when the owner of this house accidentally dropped a ping pong ball on the path he saw to his surprise how one frog's tongue fired out, grabbed the ball, and swiftly drove it right down the stomach. The frog seemed happy enough and would gladly eat more ping pong balls, all of which would sooner or later come out the other end (somewhat messed up). These frogs could not distinguish between ping poll balls and insects. It is as if they have a mechanism in their head telling them "swallow anything mobile in proximity to the lights". Had it not been for us humans throwing ping pong balls around, this adaptation would have been highly successful (perhaps it is anyways)…
Is religion the equivalence of eating ping pong balls? Richard Dawkins seems to think so and I think it is also a plausible explanation. He writes:
My specific hypothesis is about children. More than any other species, we survive by the accumulated experience of previous generations, and that experience needs to be passed on to children for their protection and well-being. Theoretically, children might learn from personal experience not to go too near a cliff edge, not to eat untried red berries, not to swim in crocodile-infested waters. But, to say the least, there will be a selective advantage to child brains that possess the rule of thumb: believe, without question, whatever your grown-ups tell you. Obey your parents; obey the tribal elders, especially when they adopt a solemn, minatory tone. Trust your elders without question. This is a generally valuable rule for a child. But, as with the moths, it can go wrong.
So perhaps children who are taught by elders that God exists, that you better pray to God, and that you better go to church if you don't want to fry in hell, will accept this simply because they are told so by people who are supposed to know a lot about the world. This would explain the extremely high correlation between the religion of parents and their children, as well as the fact that virtually all religious conversions are to religions which are present in the culture in which the converter lives (there are not many people who move from say Iran to Sweden and suddenly convert to Hindu).
But wait! This only explains how religion can be passed on. How did it come about in the first place? Richard Dawkins, in order to explain this, suggests that it might have to do with our "Hyperactive agent detection device":
Justin Barrett coined the acronym HADD, for hyperactive agent detection device. We hyperactively detect agents where there are none, and this makes us suspect malice or benignity where, in fact, nature is only indifferent. I catch myself momentarily harbouring savage resentment against some blameless inanimate such as my bicycle chain.
I don't think I risk any overstatement when I say that people blame "things" for all kinds of stuff. My mother often calls me when she needs help with her computer and she is always certain that she did indeed not do anything to mess up the system, that option is unthinkable. No, the system messed it self up, intentionally… Well, maybe that is why we have religion. Who are we to blame when it rains on our wedding day?, who are we to blame when the alarm clock stops working the day when you were going to that really important meeting?, and who are we to blame when a tsunami has swept away your entire family? Surely there must be an agent who influences these events? I think that we probably have a mechanism in us which biases us towards such explanations. Hence religion.
Ps: For some "good news" see the Guardian article "Atheists top book charts by deconstructing God"
onsdag 4 juli 2007
The God Delusion, Part 4, Why there is almost certainly no God

I am not the only blogger who is discussing The God Delusion. If you want a view that is really different from mine you can go to the Apologetics homepage where you will find comprehensive criticism of Richard Dawkins latest book. Deepak Chopra whom I recently criticized for his abuse of quantum physics also taken the challenge of trying to break the arguments put forth in The God Delusion. Needless to say I don't think that the Apologetics or Chopra are able to break the very strong message in the God delusion, but that should be up to you readers to decide.
After having met the many arguments or proofs for God, one by one, in chapter four Richard Dawkins goes on to describe not only why we do not need a God to describe our world but also why such a God in fact is quite implausible.
He starts out by explaining why the alternative to a creator God, Charles Darwin's (see picture) Theory of Evolution, is not, as many people tend to think, the same as blind chance. It is really quite wearisome to hear people say "so you think we just popped into existence" when you say you believe in evolution, but I have already written about this issue in my blog post Evolution is NOT blind chance. Dawkins also points out that to call upon a creator in order to explain complexities which we have not yet understood does not solve nothing, all it does is to invent another complexity that needs to be explained. I would like the ID proponents to suggest an empirical test, similar to the one below, which if it succeeded would support their "theory" and if it failed would falsify it. Dawkins writes:
"Darwin himself said as much: 'If it could be demonstrated that any complex organ existed which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find no such case.' Darwin could find no such case, and nor has anybody since Darwin's time, despite strenuous, indeed desperate, efforts. Many candidates for this holy grail of creationism have been proposed. None has stood up to analysis"
Another common tactic used by religious people is "The worship of gaps". Whenever there is something science cannot explain such as for instance language, certain religious people take this as proof of God's existence. After all, if science doesn't have the explanation, then it has to God right, right?
"The logic turns out to be no more convincing than this: 'I [insert own name] am personally unable to think of any way in which [insert biological phenomenon] could have been built up step by step. Therefore it is irreducibly complex. That means it is designed."
But what about the Universe and what about us humans? Why should there be a Universe? Why should we exist? Surely someone must have wanted us to exist? No not of necessity. Though I am still merely an amateur astronomer (I am trying to help that by following a lecture series by Professor Alex Filippenko available at Berkeley's webcast), I know that there are theories out there which could potentially elucidate why our Universe looks the way it does. There are also good attempts to explain how the first cells arose. These theories I admit can sound a bit far fetched an even unlikely. However, it seems that we are also relatively lonely in our Universe and so the unlikely event of a cell (see below) forming spontaneously from various organic constituents only had to happen once for us to exist. If you throw a dice billions and billions of times you are likely to at least once get say 10 sixes in a row even though the probability of this series is as low as 0.00000002.

We humans are also ill equipped to accept hard nosed scientific theories instead of explanations that invoke an agent such as God. Humans have a natural tendency to see agents everywhere. Dawkins writes:
"Maybe the psychological reason for this amazing blindness has something to do with the fact that many people have not had their consciousness raised, as biologists have, by natural selection and its power to tame improbability. J. Anderson Thomson, from his perspective as an evolutionary psychiatrist, points me to an additional reason, the psychological bias that we all have towards personifying inanimate objects as agents. As Thomson says, we are more inclined to mistake a shadow for a burglar than a burglar for a shadow. A false positive might be a waste of time. A false negative could be fatal. In a letter to me, he suggested that, in our ancestral past, our greatest challenge in our environment came from each other. 'The legacy of that is the default assumption, often fear, of human intention. We have a great deal of difficulty seeing anything other than human causation.' We naturally generalized that to divine intention."
In summary, chapter four in The God Delusion, bring up a few quite important points. It is shown that a creator God is really an inadequate answer since it merely brings up another problem namely who created the creator, or who designed the designer? The best theory we have to explain our own existence without invoking an agent is the beautiful and simple Theory of Evolution.
söndag 17 juni 2007
The God Delusion, Part 1 - A deeply religious non-believer

I would not claim that The God Delusion is a very original book. Most of the arguments and discussions in the book have appeared elsewhere before. However, The God Delusion is a comprehensive book which I think covers most the relevant arguments and discussions concerning science and religion. One influential (fundamentalist?) blog that I read recently complained that atheists cannot decide whether to attack religion because they think it is false or because they think it lead to evil. My response is that, religion should be criticized because it is plausibly false and because it is a source of evil. It is not a good defense to point out that your stance can be criticized from several different perspectives.
In the first chapter of his book Dawkins defines what he means by God. After all, God is defined in very different ways depending on who you ask. For example, there are many people who see God, not as an omnipotent, omniscient man in the sky, but rather they claim that God is the natural laws, or God is in everything. Personally, I think that semantics (the meaning of words), in essence is a democratic endeavor. I think that a word means what most people think it means. If you are not happy with that then come up with a new word. In any case, Dawkins makes it clear that he writes about the God as he is defined in the religions of Christianity, Judaism and Islam i.e. the God in the Old Testament (Yahweh).
Why should we respect a religious hypothesis more than any other hypothesis? That is the next issue brought up in The God Delusion. In my relatively short career I have only yet been part of one article submission. The way it works is that when you send in your article to a peer reviewed journal, the editors will read it and possibly send it right back with a "we won't publish this crap" note attached. If you are lucky the editor thinks that your article has a chance of being published in their journal. If so, the editor sends the article to two or three reviewers, typically your worst critics. The reviewers read the article and send their comments back to the editor. They also say whether they think the article is good enough to be published in the journal or not. After all these turns which usually takes two or three months (sometimes more), you get your article back along with all the criticism and ad hominim attacks (which occur every now and then) and more often than not with a negative response. Then, for a couple of weeks, you feel devastated and contemplate whether you should perhaps start working with garbage disposal or something else that suits your mental capacity better, and then you get back on the horse and send your article to a less prestigious journal.
Dawkins writes:
"A widespread assumption, which nearly everybody in our society accepts - the non-religious included - is that religious faith is especially vulnerable to offence and should be protected by an abnormally thick wall of respect, in a different class from the respect that any human being should pay to any other."
I could not agree more. To criticize religion in the same fashion that scientific discoveries are criticized is completely taboo. I think this is strange because as I see it believing in a God is no different from believing that a classically conditioned memory trace sits in the Purkinje cell in the Cerebellum. Of course there is one important difference. Religion is often much more a part of a person than is for instance a scientific hypothesis. It is probably easier to really hurt someone by criticizing their religion than by criticizing something else, and I think one should take this issue into account, though not to the extent that we do today.
To illustrate the reactions that can occur when religion is criticized, Richard Dawkins, writes about the Muslims reaction to the cartoons that were published in Jyllands Posten. Sure they were probably tasteless and all that, but compared to the way Richard Dawkins was depicted in South Park (season 10, episode 12), it is nothing (I am a big south park fan by the way). In response to the cartoons in Jyllands posten one (fundamentalist) Muslim responded in a tragicomic fashion:
"Behead those who say Islam is a violent religion'."
torsdag 17 maj 2007
The argument from design

Imagine that you are out walking an early Monday morning. Suddenly you detect something shining on the ground. You pick it up and see that it is a delicate watch. Intrigued, you take the clock back home and pick it apart. Amazed by the fine, very complex machinery inside you say to yourself "this cannot have just come about by chance, someone must have made this clock". Tuesday morning, when you are out walking again your foot suddenly bumps into something, and you look down… There lies a dead man. You take him home and dissect the body. With the aid of electron microscopy and other high tech tools you look into the cells and see how extremely, impressively complex they are. Again you look up and say to yourself "this human being is far more complex than the watch I found yesterday, this human cannot have just come from nothing, there must have been a creator"…
This argument which I believe is referred to as the argument from design or the watchmaker analogy, was put forward by a man named Paley (actually I think I have read somewhere that he was not the first person to use the argument, but it is associated with him). Unless this is the first time you read my blog you will probably know that I do not buy this argument, for several reasons. First of, this is an analogical argument, and analogical arguments are only as good as the analogy. In other words, the argument is valid only to the extent that a clock and a human being are similar, and we all know they are not very similar. For example, I happen to know that humans can make babies. In contrast, I have never seen clocks make new clocks, not even when I put my different clocks in the same drawer (though maybe that is because all my clocks are broken?). There are of course many other differences between clocks and human beings but I will let the reader use her imagination here.
The perhaps biggest flaw in the argument from design is to suppose that the alternative to design is sudden, random formation. Paley simply did not understand evolution, and neither does anyone today who argues that the theory of evolution by natural selection suggests that things just come about by chance (see my previous post called, "Natural selection is NOT blind chance"). Mutations, which are approximately random will give rise to new DNA molecules every now and then. Some DNA molecules, independent of whether they are in a virus, bacteria, mouse, dog, cat, whale, monkey or human being, will be more successful in terms of survival and replication, than the average DNA molecule. Sometimes the molecules just "gets lucky", but over time the phenotype (the characteristics) of the DNA molecule plays an important role in determining the fitness of that molecule. Say that one DNA molecule contains the code for making Prions, which then goes up and destroys the brain of its host. This molecule would not be very successful (unless it lets its host reproduce before starting to express the protein)... The Ebola virus is another example of a rather "unintelligent" strand of DNA (or is it RNA, I don't really know). Sure it is great at spreading between different individuals, however, this does not compensate for the fact that Ebola viruses kill their host really rapidly and brutally. Had the virus been a little bit more subtle and patient it would have been much more successful.
The point here is simply that the fitness of a particular strand of DNA is not random. Depending on what it does it will have a larger or lesser chance of getting into the next generation, and this process is referred to as natural selection. It is quite ironic that the argument from design so often comes from those who believe in God.
In essence, the argument from design becomes something like the following: No, humans surely cannot have come about through natural selection, that is just too unlikely! It is much more likely that we have a divine being, superior to all human being who came about (wait a minute, how did he come about???), and made the humans, that is much more likely… hmmm. Seems to me that creationists are undermining themselves…

For a much more thorough analysis of the argument from design I recommend Richard Dawkin's "The Blind watchmaker".
söndag 21 januari 2007
The difference between science, faith and religion
I am sure everyone who have been reading this blog occasionally will know by now that I am a science freak. I think that science is the way to gain knowledge. Many people say that science is narrow minded, that believing in science will confine the scope of our knowledge, but I disagree. Science, for me, is an open minded and modest approach when it comes to discover new things. Science is based on evidence. However, evidence is not necessarily gathered in a laboratory by people in white lab coats, evidence can be all sorts of things. As defined by oxford concise dictionary, evidence is "the available facts, circumstances, etc. supporting or otherwise a belief, proposition, etc., or indicating whether or not a thing is true or valid".
So what does not count as evidence you might wonder. My own answer to this, which I have not thought so much about, is things that can just as well be explained by chance. Often, when I discuss homeopathic medicine or other alternative approaches to medicine, I hear statements such as "well look, person x got well after taking this medicine, you see, it works". Perhaps this could be seen as evidence, but if so, it is one of weakest forms of evidence. Why? Because person x could have gotten well for any number of reasons, after all our immune system will deal with almost everything in a relatively short amount of time. I would take any type of medicine seriously, including homeopathy, if they could show in a double blind experiment that it worked.
Science is not the same as faith which is defined in my dictionary as "complete trust or confidence", or "firm belief, esp. without logical proof". As I have just shown it is almost the opposite. My ideal is to be sceptical to ideas with weak evidence, but not so sceptical that I cannot be convinced when proper evidence does exist.
Science is also different from religion which in my dictionary is defined as "the belief in a superhuman controlling power, esp. in a personal God or gods entitled to obedience and worship". Science is a method (or rather a gizillion methods) to achieve knowledge. Religion, on the other hand, is a belief in a superhuman nature, they are completely different concepts. A minority of scientists are religious (Einstein, by the way, is not one of them), the majority is not. The two are in other words more or less independent of each other. This is not entirely true of course since by scientific standards, religion is a weak theory with a minimal amount of supporting evidence. For this reason I am an atheist, but again, if proper evidence is shown to me I would change my mind.
I want to end with a great quote by Carl Sagan that I just read and which captures most of what I have written here; "Be open-minded, but not so open-minded that your brains fall out."
söndag 12 november 2006
Ethics of an atheist

One common misconcepetion about atheists is that they do not care about anything, after all, why would anyone want to be good unless they are rewarded with a place in heaven?, and what would stop someone who do not fear the eternal fire in hell from rape and murder?
I think statements such as these say more about religious people than it does about atheists. It reveals that the only reason they are acting morally is because of the reward that they believe will be given to them.
For me there is really no egoistic reason for behaving morally, it is just something I try to do for its own sake, acting morally is simply good. I think that ethics in the 21st century should not be based on an ancient book of fiction which advocates "turning the other cheek" on one page and stoning to death those who do not share your faith on another page. Rather, I advocate thinking rationally about ethics.
I personally subscribe to some form of utilitarianism, meaning that we should try to maximize happiness in the word. I say some form of utilitarianism, because sometimes I think it can be questioned whether the end justify the means. Another sound ethical principle in my opinion is the one of the "original position" advocated by Harvard professor John Rawls. According to Rawls it should not matter where or by whom you are born. If being born in a certain part of the society or by a certain class means entering a life of unhappiness or even slavery, then it is not a good society. A leader, thus should be able to say that "if I was reborn tomorrow, it would make no difference to me where or by whom I was born". This may be a utopian idea, but I think it is a good guideline.
How does a belief in evolution fit into all this? Surely, evolution teaches us that the killing rivals and raping is good? No! Evolution, says nothing about what is good and what is bad, that is for us to decide. Evolution can teach us many things about the ways in which humans work and what kinds of instincts to expect. Evolutionary psychology can give us invaluable information in the building of a just world. Not taking into account what we know about humanity when building a society just seems rather stupid to me. I will end with a quote by a great Professor, Leda Cosmides (see picture), whose class I had the privilege to attend; "Go save the world, but do it using what you know about human nature!"