The alternative to thinking in evolutionary terms is not to think at all.
Peter MedawarTag: science thinking evolution
That natural selection can produce changes within a type is disputed by no one, not even the staunchest creationist. But that it can transform one species into another — that, in fact, has never been observed.
Robert J. SawyerTag: science biology evolution darwinism darwin natural-selection neo-darwinism speciation
Real arms races are run by highly intelligent, bespectacled engineers in glass offices thoughtfully designing shiny weapons on modern computers. But there's no thinking in the mud and cold of nature's trenches. At best, weapons thrown together amidst the explosions and confusion of smoky battlefields are tiny variations on old ones, held together by chewing gum. If they don't work, then something else is thrown at the enemy, including the kitchen sink - there's nothing "progressive" about that. At its usual worst, trench warfare is fought by attrition. If the enemy can be stopped or slowed by burning your own bridges and bombing your own radio towers and oil refineries, then away they go. Darwinian trench warfare does not lead to progress - it leads back to the Stone Age.
Michael J. BeheTag: science biology evolution darwinism mutation macro-evolution macroevolution arms-race
The most essential prediction of Darwinism is that, given an astronomical number of chances, unintelligent processes can make seemingly-designed systems, ones of the complexity of those found in the cell. ID specifically denies this, predicting that in the absence of intelligent input no such systems would develop. So Darwinism and ID make clear, opposite predictions of what we should find when we examine genetic results from a stupendous number of organisms that are under relentless pressure from natural selection. The recent genetic results are a stringent test. The results: 1) Darwinism’s prediction is falsified; 2) Design’s prediction is confirmed.
Michael J. BeheTag: science biology chance evolution naturalism darwinism natural-selection intelligent-design predictions macro-evolution macroevolution id
Before you can ask 'Is Darwinian theory correct or not?', You have to ask the preliminary question 'Is it clear enough so that it could be correct?'. That's a very different question. One of my prevailing doctrines about Darwinian theory is 'Man, that thing is just a mess. It's like looking into a room full of smoke.' Nothing in the theory is precisely, clearly, carefully defined or delineated. It lacks all of the rigor one expects from mathematical physics, and mathematical physics lacks all the rigor one expects from mathematics. So we're talking about a gradual descent down the level of intelligibility until we reach evolutionary biology.
David BerlinskiTag: science biology evolution darwinism clarity macro-evolution macroevolution ambiguitydefinitions
In the abstract, it might be tempting to imagine that irreducible complexity simply requires multiple simultaneous mutations - that evolution might be far chancier than we thought, but still possible. Such an appeal to brute luck can never be refuted... Luck is metaphysical speculation; scientific explanations invoke causes.
Michael J. BeheTag: science biology chance evolution naturalism darwinism luck mutation intelligent-design serendipity macro-evolution macroevolution id
Random mutations much more easily debilitate genes than improve them, and that this is true even of the helpful mutations. Let me emphasize, our experience with malaria’s effects on humans (arguably our most highly studied genetic system) shows that most helpful mutations degrade genes. What’s more, as a group the mutations are incoherent, meaning that they are not adding up to some new system. They are just small changes - mostly degradative - in pre-existing, unrelated genes. The take-home lesson is that this is certainly not the kind of process we would expect to build the astonishingly elegant machinery of the cell. If random mutation plus selective pressure substantially trashes the human genome, why should we think that it would be a constructive force in the long term? There is no reason to think so.
Michael J. BeheTag: science biology chance evolution darwinism macro-evolution macroevolution malaria mutations
In science's pecking order, evolutionary biology lurks somewhere near the bottom, far closer to phrenology than to physics. For evolutionary biology is a historical science, laden with history's inevitable imponderables. We evolutionary biologists cannot generate a Cretaceous Park to observe exactly what killed the dinosaurs; and, unlike "harder" scientists, we usually cannot resolve issues with a simple experiment, such as adding tube A to tube B and noting the color of the mixture.
Jerry A. CoyneTag: science biology evolution darwinism conjecture darwin confessions-of-the-darwinists darwinist-confessions macro-evolution macroevolution neo-darwinism pseudo-science speculation
[...] if truth be told, evolution hasn’t yielded many practical or commercial benefits. Yes, bacteria evolve drug resistance, and yes, we must take countermeasures, but beyond that there is not much to say. Evolution cannot help us predict what new vaccines to manufacture because microbes evolve unpredictably. But hasn’t evolution helped guide animal and plant breeding? Not very much. Most improvement in crop plants and animals occurred long before we knew anything about evolution, and came about by people following the genetic principle of ‘like begets like’. Even now, as its practitioners admit, the field of quantitative genetics has been of little value in helping improve varieties. Future advances will almost certainly come from transgenics, which is not based on evolution at all.
[review of The Evolving World: Evolution in Everyday Life, Nature 442, 983-984 (31 August 2006)]
Tag: science biology evolution darwinism conjecture darwin confessions-of-the-darwinists darwinist-confessions macro-evolution macroevolution neo-darwinism pseudo-science speculation
These mysteries about how we evolved should not distract us from the indisputable fact that we did evolve.
Jerry A. CoyneTag: science biology dogma evolution darwinism conjecture darwin confessions-of-the-darwinists darwinist-confessions macro-evolution macroevolution neo-darwinism pseudo-science speculation conclusion-before-evidence
« prima precedente
Pagina 16 di 47.
prossimo ultimo »
Data privacy
Imprint
Contact
Diese Website verwendet Cookies, um Ihnen die bestmögliche Funktionalität bieten zu können.