Re: Islam and Apostasy
Hello Sharvy,
It is up to scientists; science is not an entity that chooses, but I assume you meant scientists.
The only thing we have concluded is that Newton was wrong, Huygens was wrong and everyone else was wrong. We still are searching for a better answer.
Dear Ansar,
Who is the "we" here: some scientists, most scientists, a consensus? Isn't it a fact that scientists do reach consensus on some issues (though there may be still be stray defectors), thereby justifying a general claim to "know" something to be true? Also, if the scientific "we" can conclude that Newton was wrong, that same "we" has concluded that Aristotle and Ptolemy were wrong, but has also concluded that Galileo was right about the motion of the earth. We are not still searching "for a better answer" than this.
For example, we have known for at least the last two hundred years that the earth spins in orbit around the sun – moving in two distinct ways, spinning and following an orbital path. That fact was not generally "known" or accepted in 1400 or at the time of Mohammed pbuh. So even before we launched satellites into space and were able to visually see and confirm this movement, science, by consensus, confirmed and established that the movement of the earth is highly probable and therefore, a justified belief. So if 100 years ago, I asked an educated person why they are sure the earth spins, on your view what should their answer have been? Merely that some scientists have said so and have done experiments to support that hypothesis? Or, should this educated person point out that a tremendous amount of scientific data and research over the course of two hundred years has established that the earth does spin – forming a stable consensus in the scientific community of experts. Since this stable scientific consensus has concluded with a high degree of probability (what I call "practical certainty") that the earth spins, an educated person can reasonably accept the matter as settled for all practical purposes – settled enough to devote tremendous amount of time and resources and bet on it if necessary. Without a real scientific consensus of this sort, no educated person back then could have reasonably claimed to "know" that the earth spins and moves around the sun.
So just as there is currently a scientific consensus that Galileo was right about the earth's movement, there is also such a consensus that Darwin was largely right about speciation and natural selection, and that humans and apes evolved from a common ancestor. Hence a well-educated person can reasonably claim to know this truth.
Global warming is a phenomenon, not a theory.
Ansar, global warming is both a phenomenon AND a theory. Just as the fact that matter is composed of atoms is both a phenomenon and theory. There is much confusion over the word "theory" which is used different ways by different people. Generally, as used in science, evolution is just a theory, in the same way that the atomic theory of matter is just a theory, the Copernican theory of the solar system is just a theory, or the germ theory of disease is just a theory. But theories, are not simply hypotheses or hunches, and they're not unproven speculation. Theories are systems of explanations which are strongly supported by factual observations and which explain whole sets of facts and experimental results. If a theory becomes well-established and highly confirmed – educated people may then conclude that the substance of theory is probable truth and thereby accept the existence of the corresponding phenomena, believing, betting, and acting accordingly.
What Islam says is something that science is incapable of either proving or disproving. Just like I cannot prove that I had a headache last week, it is impossible for us to make a definitive claim about a time from which we have no evidence.
While many working scientists do in fact use the word "prove" and "proof", most contemporary philosophers of science avoid this language. We prefer to use the terms "confirm" and "disconfirm", where "confirm" means to gather or obtain evidence which raises the probability of a hypothesis (never absolute certainty), and "disconfirm" means to gather evidence that lowers its probability (without rendering it impossible). The concept of "proof" is essentially mathematical, relating to deductive logic, and dates back to Aristotle, when the paradigm of justified belief was a valid deductive argument or a mathematical "proof" in which the truth of the conclusion followed by necessity from the truth of the premises and axioms. Science essentially uses inductive, not deductive, logic – the truth of a scientific claim is never "proved" or disproved with deductive certainty but only with a degree of probability in relation to the strength of the premises, observation, or evidence. So, science cannot "prove" with anything like deductive or mathematical certainty that the earth is not a flat disk. After all photos can be faked, minds can be tampered with and influenced. No matter what evidence that a scientist puts forth to claim that the earth is not flat, there is a member of
the flat earth society that would find a compatible hypothesis to explain away the contrary evidence. And the flat-earthers are right! Science can't "prove" the earth is flat, but it's a mistake to play the "proof" game to begin with. What science can do is to systematically bring overwhelming evidence to bear on the claim that the earth is flat, and render the claim highly improbable with no good reason to believe or bet on its truth.
So while you or science cannot "prove" you had a headache last week. You and other sources (e.g. a hidden video camera) can certainly provide people with evidence that would make it, all things considered, reasonable to believe that you in fact really did have a headache last week. In that sense, science can gather evidence to confirm and establish the likelihood of your claim.
Similarly, the evidence is considerable that the Grand Canyon existed a million years ago, even if no one was around to see it – you can bet on it. For example, tomorrow, if someone discovered an alien satellite with a detailed geological record of the planet earth for the past few million years, before the data was fully revealed I would be willing to bet all of my savings that the data would show that the canyon was there 750,000 years ago – that would be a very good bet indeed. So while science can't make a "definitive" claim in your sense; it doesn't have to. If only has to make reliable, well-supported claims to be useful and get its job done.
But that is the problem. There is no way for scientists to determine whether Adam and Eve existed or not. They can note similarities between various species and construct phylogenetic trees to illustrate that, but it brings us no closer to determining whether Adam and Eve existed or not. The belief in Adam and Eve is not a scientific claim because it is neither verifiable nor falsifiable with scientific evidence.
As I mentioned in a previous post, it doesn't matter if science can or cannot verify the specific existence of Adam and Eve. Contemporary evolutionary science is claiming that all humans alive today shared a common ancestor with today's chimps. On the Islamic doctrine, as described in the fatwa, that can't possibly be true – there is a conflict. Salim and I are both convinced that the evidence for human speciation is just as strong as the evidence for chimp speciation – which is considerable indeed. Is it or is it not Islamic doctrine that today's humans and today's chimps did not evolve from a common ancestor? If Islamic doctrine is claiming there is no such common ancestry, then whether or not science can identify Adam and Eve is irrelevant. That issue aside, evolutionary science can bring plenty of evidence to bear that that doctrine is probably mistaken.
Let's take an example from math. If I told you that part of a pattern was {...1,2,3...} you might assume that it is an arithmetic sequence and the next number is four. All evidence (current terms) we have support the notion that it is an arithmetic sequence. But they could just as likely be from the
Fibonacci sequence. The first pattern is simpler so we might be inclined to accept it, but it can just as easily be wrong. So when you say that all the evidence supports the evolution of humans, what you mean is that so far there is no scientific evidence that contradicts it. I could say exactly the same thing with respect to the Islamic belief.
No I mean much more than "so far there is no scientific evidence that contradicts" the evolution of humans. Your Fibonacci analogy is flawed. Suppose I have a barrel that I know contains a million marbles that are either red or black – but cannot know the color before I choose a marble. Suppose I turn the barrel multiple times before and after each pick completely randomizing the pick of each marble. Mathematically if the first 100 marbles I pick are black, the odds go up the next marble I pick will be black. If I pick 1000 straight black marbles, the odds are much stronger that the next marble I pick will be black – and it becomes more probable (not certain) that all the marbles in the barrel are black. And supposed I picked 990,000 straight black marbles. According to your line of reasoning all I have established is that "so far, there is no evidence to contradict the claim that the all the marbles left in the barrel are black," suggesting that I cannot have confidence in anything more. Yet mathematically I would be willing to bet my life savings that all the other marbles are black. That would be a very good bet: statistically I would have more chance dying in traffic accident driving to the market this afternoon – something I intend to do. The next marble MIGHT be red, and I have no evidence to contradict that POSSIBILITY, but it would still be a very wise to bet against that. However betting my life's savings would have been a very bad bet after only 3 picks. There are good, strong inductive samples to support a conclusion and weak ones. The slim extract of the Fibonacci sequence you gave me was an extremely weak inductive sample and any extrapolation of the sequence would be highly risky. My point is that not all inductive extrapolations are so risky as you seem to be suggesting – and the amount of evidence one has in support of a hypothesis matters a great deal.
In the case of evolution, the evidence goes well beyond merely claiming, "there is no evidence to contradict" human evolution. If one compares the genetic profile of humans and other primates – especially the random genetic flaws passed down from the ancestors of our respective species - one develops a very clear picture of human evolution that INDEPENDENTLY corroborates the rather considerable fossil data. The evidence renders the case for human evolution highly probable.
There is no good science or bad science.
Of course there is good and bad science. The flat-earthers and psychics practice bad science all the time, making fundamental errors in experimental design and statistical inference.
Science and scientific evidence does not contradict Islam.
I sincerely believe you are mistaken, and I think the discussion above shows that unfortunately you have flawed understanding of science and scientific evidence.
Respectfully,
Sharvy
