the_classicist said:
:: You're committing several logical blunders here. First, no one is claiming that cells evolved in one fell swoop by chance. Rather, origins scientists today generally propose that the earliest life was far simpler, probably based on unknown but simple protein sequences.
: Wait a minute, I never said cells evolved in "one fell swoop by chance."
Of course you did, unless English is a problem for you, which I know it is not. You clearly stated:
:::: What I have said is that life (as in a cell, the simplest unit of life) cannot come about by chance
I.e., a cell cannot come about by chance. Now, if you actually meant to say that a cell cannot come about through a sequence of chance steps, that would be another kettle of fish. But I'm not a mind reader.
:: I don't know enough to say more than that, but from your statements, you know a good deal less than I do, and so it would behoove you to educate yourself before making such pronouncements.
: Interesting pontification.
Upon which you've failed actually to comment.
I know plenty about ID, having read many books pro and con, and having followed it since the 1991 publication by Phillip Johnson of Darwin on Trial, which kicked the whole thing off. You've already clearly stated that all you've "heard about ID is that life is irreducibly complex and it couldn't have come about by chance." Sounds to me like you haven't done any homework, but have only been chugging along on hearsay. If your statement was, well (What's the right word? Hypobole as opposed to hyperbole? Well, you get the idea.), highly understated, then you need to learn to communicate clearly.
:: Second, you're committing the very same logical fallacy I desribed above, namely, invoking the argument from ignorance. Third, how do you know that "life cannot come about by chance"? Are you so much more knowledgeable than anyone else so that you know this, and can prove it?
: Second, actually, I'm trying to argue from agnosticism.
Knock me over with a feather!
: Neither sides can be proven, although each side would like to think that they can.
Um, no. Science never proves anything, and all scientists worth their salt admit this. Science only comes up with explanations that have varying degrees of probability, ranging from nearly zero to nearly certain. Scientists who argue against the precepts of ID mainly argue that its claims are simply not science, or that specific arguments made by ID claimants are wrong for very specific reasons. Of course, if you'd do your homework rather than relying on hearsay, you'd know this.
The most specific criticism of ID, once again, is that it is not a theory about anything. Rather it's a negative, a claim that other theories -- the theory of evolution and the notion of abiogensis -- are absolutely, certainly, 100% wrong, leaving only the notion that the Christian God created everything. ID proponents have nothing positive to replace it with, except to make noises about a vague, unspecified intelligent designer in some circles, and the Christian God as The IDer in other circles. But of course, they have absolutely no actual theories or writings about just what this IDer actually does. Read their writings and see if you can find it. Better men than you or me have tried, and failed.
A good example of this is the theory of "unspecified complexity" set forth by William Dembski in several books. He details a theory about an "explanatory filter" (have you even heard of this?) which is supposed to be able to take the specifications of some system as input, and give as output a judgment as to whether it's a natural or created system. But neither Dembski, nor his fellow IDers, nor anyone else, has successfully applied it to any real biological system. In other words, it's completely useless. As is the rest of ID.
: Of course, if scientists did form create "life" in the lab, then one side would have to hoist it's position upon it's own petard.
Indeed.
I want to point out here, that creationists of various sorts have had to retreat year by year with respect to human evolution. They've traditionally claimed that there are no "missing links", no kinds of creatures in some way "in between" ape-like creatures and full-blown humans. But over the years, all sorts of fossil evidence has proved them wrong. Every few years, another fossil shows yet another form of ancient hominid or ancient human or human-like creature. The most recent, just this past year, was the discovery on the Indonesian island of Flores of miniature Homo erectus fossils, some just 14,000 years old.
It may well be that biologists will one day show precisely how life might arise "by chance". Neither you nor I know if this is possible or not.
: So far the theory that life can come about by chance has been falsified by laboratory experiments.
Absolutely wrong. A correct statement is that so far, the theory that life can come about by chance has not been verified by laboratory experiments. The difference is profound.
: Third, how do you know that it can come about by randomness?
I never said it could. Personally, I take a wait and see attitude towards all theories relating to abiogenesis.
: Again, I'm arguining from agnosticism as to the validity of both theories and why they should both be included.
That's the proof that you don't understand real science. ID is a religious idea, period. IDers state that clearly, in Christian circles. Religious ideas have no place in science, period.
:: But there's a lot more to the ID movement than that.
: Movements and actual theories should be separated and recognized as two different entities.
Perhaps in principle, but it can't be done in practice. And as I've shown, IDers have a clearly stated agenda of getting the notion that their biblical, Judeo-Christian God created everything back into general acceptance, and of getting that notion accepted into every part of modern society. Do you really want that?
: I've seen neo-Darwinists argue against non-Darwinist theories by associating it with creationist movements.
Examples, please.
: Instead, we don't focus on what each movement wants, but what the actual theory says and it's own merits.
Show me someone apart from the Discovery Institute who promotes an intelligible theory of intelligent design, and I might go along with you.
:: Do you really think that they'd quietly accept a public school teaching that, say, Thor is The Intelligent Designer?
: Why not? Didn't you know the universe was forged by Thor's hammer? [/sarcasm]
Funny, but my point is dead serious. Why not answer it seriously?
:: Science continually improves, and so my main point is that you can't claim that merely because science can't explain something today, it never can. That's an obviously false claim.
: Explaning something and showing it is logical and rational is not equivalent to what actually happened. [sarcasm]
Do tell. But that has nothing to do with my comment.
: Just because scientists can't build anti-gravity wells today, doesn't mean that they never can.[/sarcasm]
Again funny, but your point is a good example of what I'm talking about. Do you have real knowledge that anti-gravity wells can't be made? I have no idea myself, but what if next year a breakthrough were made and such became practical? Don't think it can't happen. About 1895, the famous scientist Lord Kelvin pronounced that pretty much everything that could be discovered had been, and guess what? The next year Roentgen announced the discovery of X-rays, and shortly after that atomic radiation in the form of alpha particles was discovered, which quickly revolutionized science. A few years later Einstein again revolutionized physics with three Nobel-prize quality papers in one year. A few years after that we had quantum mechanics. Then we had electronics and all sorts of things not even imaginable to our ancestors. Don't be so sanguine.
: Science today says that we cannot create life or even reproduce the mechanisms that supposedly created life.
Correction: can't do it as of today. A century and change ago, "science said we couldn't fly because no one could do it." Your claim is demonstrably silly.
: Unless some scientists cannot show otherwise, to say that life cannot come about by randomness is a valid theory.
Sure. It's as valid as 150 years ago claiming that it's impossible for mankind to fly.
: It's not the same as saying, "Well, God must've done it." No, it's saying that "Life is so complex that, due to the inability of scientist to reproduce the mechanisms that produce life, this leads some to think that life could not have come about by chance," or something to that effect.
Well that's a perfectly reasonable way of putting it. But that contradicts everything you've said so far, which has been to dogmatically state that, just because it can't be done today, it's impossible.
AlanF