There is professional evolutionary biology: mathematical, experimental, not laden with value statements. But, you are not going to find the answer to the world's mysteries or to societal problems if you open the pages of Evolution or Animal Behaviour. Then, sometimes from the same person, you have evolution as secular religion, generally working from an explicitly materialist background and solving all of the world's major problems, from racism to education to conservation. Consider Edward O. Wilson, rightfully regarded as one of the most outstanding professional evolutionary biologists of our time, and the author of major works of straight science. In his On Human Nature, he calmly assures us that evolution is a myth that is now ready to take over Christianity. And, if this is so, “the final decisive edge enjoyed by scientific naturalism will come from its capacity to explain traditional religion, its chief competition, as a wholly material phenomenon. Theology is not likely to survive as an independent intellectual discipline.” — Is Evolution a Secular Religion, Michael Ruse
Buddhism, for one example, has had this creed of "no origin" for a few millennia now. — javra
Isn't the process which is random the actual mutations? — Wayfarer
Abstract
Since the first half of the twentieth century, evolutionary theory has been dominated by the idea that mutations occur randomly with respect to their consequences1. Here we test this assumption with large surveys of de novo mutations in the plant Arabidopsis thaliana. In contrast to expectations, we find that mutations occur less often in functionally constrained regions of the genome—mutation frequency is reduced by half inside gene bodies and by two-thirds in essential genes. With independent genomic mutation datasets, including from the largest Arabidopsis mutation accumulation experiment conducted to date, we demonstrate that epigenomic and physical features explain over 90% of variance in the genome-wide pattern of mutation bias surrounding genes. Observed mutation frequencies around genes in turn accurately predict patterns of genetic polymorphisms in natural Arabidopsis accessions (r = 0.96). That mutation bias is the primary force behind patterns of sequence evolution around genes in natural accessions is supported by analyses of allele frequencies. Finally, we find that genes subject to stronger purifying selection have a lower mutation rate. We conclude that epigenome-associated mutation bias2 reduces the occurrence of deleterious mutations in Arabidopsis, challenging the prevailing paradigm that mutation is a directionless force in evolution.
Or maybe none of those questions are scientific questions per se but philosophical questions prompted by scientific discoveries. — Wayfarer
One point I will note, is that the strictly scientific attitude to h. sapiens treats them - or us - as another species, as an object of scientific analysis. Which is fine, as far as it goes, but when that begins to serve as the basis for philosophical or (anti)religious ideologies then it oversteps the mark, and where the science begins to morph into scientism: — Wayfarer
Buddhism actually has a rather strange and not very well known creation story. — Wayfarer
That all evolution is in essence entirely accidental is a mischaracterization of evolution via natural selection. In short, NS is the favoring of certain varieties of lifeforms by natural constraints—such that this metaphorical favoring by Nature is itself not a matter of chance. The following is a more longwinded but robust explanation that to me amounts to the same:
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations. Charles Darwin popularised the term "natural selection", contrasting it with artificial selection, which is intentional, whereas natural selection is not.
Variation of traits, both genotypic and phenotypic, exists within all populations of organisms. However, some traits are more likely to facilitate survival and reproductive success. Thus, these traits are passed onto the next generation. These traits can also become more common within a population if the environment that favours these traits remain fixed. If new traits become more favored due to changes in a specific niche, microevolution occurs. If new traits become more favored due to changes in the broader environment, macroevolution occurs. Sometimes, new species can arise especially if these new traits are radically different from the traits possessed by their predecessors.
The likelihood of these traits being 'selected' and passed down are determined by many factors. Some are likely to be passed down because they adapt well to their environments. Others are passed down because these traits are actively preferred by mating partners, which is known as sexual selection. Female bodies also prefer traits that confer the lowest cost to their reproductive health, which is known as fecundity selection. — javra
Our ability to reason, feel, understand, experience the world in all its qualitative richness is a matter for analysis entirely beyond the reach of evolution in a qualitative analysis. — Astrophel
Do you understand the role that natural selection plays in evolution, and that natural selection is not random? — wonderer1
This seems pretty essential to the metaphysics, not something ad hoc; it is God "in whom we live and move and have our being," (Acts 17:28, repeated every Mass).
This makes sense from the frame of a God who is "within everything but contained in nothing," (St. Augustine)
Not necessarily. One interpretation of Deism is that G*D is the universe*1. For example, G*D may exist eternally as a disembodied spirit, but occasionally transforms --- for no known reason --- into a physical material form. In that case, the Big Bang would be a birth event, and it took almost 14B years to mature into a world with self-conscious creatures. From that point onward, homo sapiens are god's way to "know thyself" (self-realization). Hence, our interactions with Nature constitute our relationship with G*D, and G*D's dealings with man. This is similar to some ancient notions of eternal formless deity (rational creative power : Brahma, Logos) and a temporal constructive demi-god (demiurge)*2*3.I must say this is a cop-out somehow more ridiculous than the "God made the Big Bang then pissed off". — Lionino
Isn't this just the definition of deism? — Hanover
Even the randomness of mutations is questionable — wonderer1
challenging the prevailing paradigm that mutation is a directionless force in evolution.
Neo-Darwinian theory, which is essentially the modern synthesis of Darwinian evolution and Mendelian genetics, focuses on natural selection, genetic drift, mutation, and gene flow as the main drivers of evolution. It emphasizes the role of random mutations, which are then acted upon by natural selection, leading to adaptations that increase the fitness of organisms in their environments.
Orthogenesis, on the other hand, is an evolutionary hypothesis suggesting that life has an inherent tendency to evolve in a unilinear direction towards some kind of predetermined goal or ideal form. This concept implies that evolution is guided by an internal or directional force rather than by random mutations and environmental pressures.
The key divergences between these two viewpoints are:
1. **Directionality**: Neo-Darwinian theory views evolution as non-directional, driven by random mutations and natural selection based on environmental pressures. Orthogenesis posits a direction or goal to evolution, implying a kind of intrinsic purpose or end-state.
2. **Role of Mutations**: Neo-Darwinism sees mutations as random events that provide raw material for natural selection to act upon. Orthogenesis often downplays the role of random mutations, suggesting instead that evolutionary changes are guided by inherent trends.
3. **Adaptation**: Neo-Darwinian evolution emphasizes adaptation through natural selection as a key driver of species change, while orthogenesis might lead to traits that do not necessarily enhance survival or reproductive success but fit an internal direction or trend.
Orthogenesis has largely fallen out of favor in mainstream biology because it lacks empirical support and doesn't align well with our understanding of genetics and evolutionary processes. The neo-Darwinian framework, which is well-supported by genetic evidence, has become the dominant paradigm in evolutionary biology.
Evolution seems to fit in there fine — Count Timothy von Icarus
Then there's the question of whether evolution was always bound to produce rational sentient bipeds such as ourselves, and, if so, why? — Wayfarer
Then what is it that provides ‘direction’? — Wayfarer
Then what is it that provides ‘direction’? Aren’t we back to orthogenesis, that being ‘evolution in which variations follow a particular direction and are not merely sporadic and fortuitous’? That is a very different picture to orthodox neo-Darwinism. I asked ChatGPT for a synopsis:
Neo-Darwinian theory, which is essentially the modern synthesis of Darwinian evolution and Mendelian genetics, focuses on natural selection, genetic drift, mutation, and gene flow as the main drivers of evolution. It emphasizes the role of random mutations, which are then acted upon by natural selection, leading to adaptations that increase the fitness of organisms in their environments. — Wayfarer
But the times they are a’ changing. — Wayfarer
But that doesn't make Theodosius Dobzhansky's statement any less valid, "Nothing in biology makes sense except in the light of evolution." — wonderer1
while the universe is surely not geocentric, it may conceivably be anthropocentric. Man, this mysterious product of the world's evolution, may also be its protagonist, and eventually its pilot. In any case, the world is not fixed, not finished, and not unchangeable. Everything in it is engaged in evolutionary flow and development.
Human society and culture, mankind itself, the living world, the terrestrial globe, the solar system, and even the “indivisible” atoms arose from ancestral states which were radically different from the present states. Moreover, the changes are not all past history. The world has not only evolved, it is evolving.
Man is that part of reality in which and through which the cosmic process has become conscious and has begun to comprehend itself. His supreme task is to increase that conscious comprehension and to apply it as fully as possible to guide the course of events. In other words, his role is to discover his destiny as an agent of the evolutionary process, in order to fulfill it more adequately — Julian Huxley, Evolution and Meaning
I can very much respect this point of view in certain respects - especially when it comes to interpretations such as those of Social Darwinism. Nevertheless, I could present the case that the metaphorical bouncer at the bar is the constraints of objective reality itself, such that that life with is most conformant to objective reality (else least deviates from its requirements) will remain present to the world. But I'm not sure if this very abstract way of thinking about evolution is a worthwhile avenue to here investigate - especially since it makes use of the notion of an objective world which, on its own, can be a very slippery thing to identify. Yet tentatively granting this, it will be true that the possibilities of what can be will be qualitatively indeterminant, but this only in so far as these myriad possibilities nonetheless yet sufficiently conform to objectivity. Hence, as one physiological example, why there has never been an animal with binocular vision whose eyes are vertically (rather than horizontally) aligned: such positioning would be contrary to the objective world's constraint of needing to optimally detect stimuli against the horizon (best short example I could currently think up). — javra
Very true. I nevertheless yet find natural selection to be very intertwined with much of the human phenotype, behavioral as well as physiological. As an undergraduate I did some independent research (with human participants) regarding the evolutionary history of human non-verbal communication via facial expressions. Specifically, back then there was a prevalent notion among ethologists and cognitive scientists alike that the human smile evolved from out of the primate fear-grimace (in short, we smile so as to show fear and thereby appease those we smile to, taking away presumptions of aggression, and thereby reinforcing friendships). The experiments I conduced gave good reason to support the conclusion that our human smile evolved from the primate play-face (in short, an exposing of weapons (for primates these being teeth and esp. canines) in playful mock-aggression—basically, this with the intent of expressing “I’ve got you’re back” when done not as a laugh but as a sincere smile). The details will not be of much use here (though I relish them), but the issue remains: either way, our human smile (and, for that matter, all our basic and universally recognizable human facial expressions) evolved from lesser primate facial expressions, and together with the expressions so too the emotions thereby expressed. Although this does not play into human’s far superior magnitudes of cognition, it does illustrate just how intimately many a defining feature of being human is associated with our biological past from which we’ve evolved as a species. Hard to think of a more prototypically cordial human image than that of a smiling face. — javra
Evolution happened naturally, the current array of species on earth evolved — flannel jesus
Man is that part of reality in which and through which the cosmic process has become conscious and has begun to comprehend itself. His supreme task is to increase that conscious comprehension and to apply it as fully as possible to guide the course of events. In other words, his role is to discover his destiny as an agent of the evolutionary process, in order to fulfill it more adequately — Julian Huxley, Evolution and Meaning
This is a way of looking at human consciousness and intelligence, but it doesn't mean much since we are such a tiny fraction of the cosmos, — Janus
We’re the only ‘tiny fraction of the cosmos’ who know what that means. It’s amusing in the extreme that objective science, which is a cognitive mode only available to h. Sapiens, then declares its authors insignificant in the ‘grand scheme’ - a grand scheme that is their own mental creation! — Wayfarer
I'm no expert on Buddhist beliefs, but a quick Google indicates that there is no single dogma on the topic of Evolution ; instead there are "schools of thought"*1. One description*2 sounds like a world marking-time -- marching in place -- without any progress : perhaps an eternal alternation between Potential & Actual : cosmic vibrations of positive & negative energy. However, the rapidity of alternations might make a series of still-shots look like a movie, to an outside observer.Buddhism, for one example, has had this creed of "no origin" for a few millennia now. — javra
Buddhism actually has a rather strange and not very well known creation story. — Wayfarer
If there were life on millions or billions of planets and we were somehow able to study the evolution of life on all those planets, would we even then be able to show whether or not evolution is "directed"? — Janus
Since any putative "director" logically must exist outside the system to be directed, and thus beyond our capacity to detect it, I think the more relevant question is as to whether we have any good reason to think evolution is directed. — Janus
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