The
Star Larvae Hypothesis
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Rise and Shine at http://starlarvae.blogspot.com/ |
Can the mess be settled through a synthesis?
Is there an "out-of-the-box" solution to be discovered?
So long as thoughtful minds regard unguided evolution and supernatural design as the only viable candidates to explain the biological world, the current stalemate is likely to persist. It's one thing that people stick to a side, but the underlying loyalty to the two-party system itself is the daunting problem. A little anarchy might be a good thing, to break up the logjam.
Unguided Evolution and Intelligent Design are doctrines. They are competing doctrines of different worldviews, different paradigms, different ideologies. Different candidates running for the same office.
Here’s a modest proposal: Rip open the packages and approach their contents a la carte. Take no prisoners. Discard what you find untenable in each package and keep what you find to be sensible, down to details. Now re-assemble the pieces you've kept and see what you get. Can you stitch together an alternative to the orthodoxies, a scenario more satisfying that either Unguided Evolution or Intelligent Design?
One strength to retain from evolution theory is its empirical foundation: the fossils in the rocks. (A trick to test our faith? Scriptures mention no such scheme.) From the fossil record we know that the species took longer than a week to arrive on Earth. So, scripture flunks the timing test, by a few billion years.
A weakness
of evolution theory to be discarded is its overdependence on natural
selection. Biologists have yet to settle on what it is that nature selects:
genes? organisms? species? some other division or grouping of organic
nature? The problem of identifying the units of selection is compounded
by the inability of biologists even to define the foundational terms "gene",
"organism", "species", and "trait". Each
of these terms is highly problematic, even outside the context of evolution,
because ambiguous cases arise no matter what definition is adopted. In
their introduction to the philosophy of biology,
Sex and Death,
Kim Sterelny and Paul Griffiths lay out the convoluted difficulties involved
in determining which of these terms corresponds to the units of evolutionary
selection. If organic nature is a "seamless web," then what
discrete features can be "selected"? This critique is elaborated
upon in a
posting on the Star Larvae Blog.
Another problem with evolution theory as currently formulated is its insistence that only two mechanisms explain the history of biological life. And only those two will be considered. This arbitrary cap on mechanisms of evolutionary change exposes the theory to criticism on the grounds of implausibility. Could random mutations, the overwhelming majority of which are detrimental to the organisms in which they occur, as the ONLY source of new genetic arrangement, coupled with natural selection, which can ONLY cull genes and concentrate the remainders, together account for the panoply of organic life past and present? Is it plausible? Maybe if you squint really hard.
Whatever plausibility it might have is challenged now by new research data. Limiting the available mechanisms to mutation and natural selection makes it hard for evolution theory to account for data that Darwin never had to address. There’s new data that never confronted Mendel. We know things now that no one knew even in the years of Crick and Watson. New technologies are force-feeding evolution empirical data that it will not be able to swallow—if it doesn't adapt.
The new technologies are DNA sequencing and analysis, and they are making trouble for evolution theory. Sequencing and analysis research is turning up genetic anomalies that evolution does not predict and that seem to undermine the assumed mechanisms of evolution theory. The research has turned up genetic sequences that are noncoding (nonfunctional) when they occur in older species but functional (coding) when they occur in newer species. This parsimony is a conundrum for evolutionists, because evolution theory allows no prospect of ancestors anticipating the needs of descendants. Noncoding "junk" DNA has been a puzzle since its discovery. Why would species harbor long sequences of DNA that seem to serve no purpose? But the discovery that one species' trash is another's treasure, and in particular that junk in older species codes for proteins that only the metabolisms of newer species can use, challenges evolution theory's rejection of an evolutionary program. The discovery suggests that the evolution of species, like the development of organisms, is, at least to a degree, pre-programmed. In both processes environmental contingencies will affect the execution of the program.
A evolutionist
response might be that nature is resourceful and makes use of what she
is given. But this is just an attempt to use coincidence to plug a hole
in the theory, a secular version of the God-of-the-gaps.
It remains to be seen, but if the coincidences pile up as a result of
ongoing DNA sequencing and analysis, then at some point the house of cards
will collapse, and the theory's premises—particularly its restriction
to nonteleological mechanisms of evolutionary change—will have to
be re-formulated. Such a paradigm shift would fit precisely the process
described in Thomas Kuhn's The
Structure of Scientific Revolutions,
in which Kuhn argues that the major advances in science occur when anomalous
data accumulate beyond the capacity of the prevailing theory to contain.
At that point a more comprehensive theory will usurp the position of the
reigning orthodoxy.
The planfulness of evolution implied by the existence of dormant genes in earlier species that become active in, and are essential to, the metabolisms of later species, does not, however, necessarily mean that intelligent design, in its biblical dress, is the only contender left standing.
Intelligent design has its own problems. Evolution at least gives us an account of how it works—how the physical objects it proposes to account for got to be the way they are. Intelligent design doesn't even deliver that much. If an intelligent supernatural designer is behind nature, then how does this designer make the transition to intelligent fabricator? To compete with evolution, intelligent design needs to be about more than design. It needs to explain the implementation. How, specifically, does the design get translated into protoplasm?
Strip from the Knight Life by Keith Knight
By telekinesis—pushing the atoms into place by mind power? Every proton? Every electron? And where did the atoms come from anyway—were they just thought into being—and then pushed by forces outside of physics into DNA molecules—or into whole organisms? Or after the first generation of organisms does the designer-fabricator periodically nudge genes into new configurations—beneficial mutations—to beget new species? The designer-fabricator might still be at work mutating a gene here, unmutating one there—by mechanisms that intelligent design cannot describe in anything like the level of detail to which the theory of evolution has been developed and to which any theory would have to attain to seriously challenge evolution.
In other words, intelligent design flunks the specificity test. It is too vague to be useful.
One refrain
in response to this point is "teach the controversy," and let
students decide for themselves. But why? We don’t teach the controversy
in other curricula—or should we? What about the Kennedy assassination?
Maybe American history classes should teach about magic bullets that exit
bodies, spin around in the air, then go back in. Sounds like intelligent
design to me, Martha. Specified complexity, anyone? Maybe
Jesus was no man at all, but code for a psychedelic mushroom.
Teach the controversy.
Or, maybe the attack of 9/11 was an inside job. An awful lot of security systems had to fail coincidentally on that particular day to produce the effects of the 9/11 attack. If we’re going to teach intelligent design in science class, then why not teach conspiracy theories in other classes, too? After all, that’s what intelligent design theory is—a conspiracy theory. Things are not as they seem on the surface. Behind the scenes lurks a mastermind who pulls the strings, arranging events ("coincidences") according to a plan.
And yet.
And yet, even paranoids can have real enemies. And even conspiracy theories can predict events that come to pass.
The normal life cycle of an organism from fertilized egg to reproductive adult would seem to be a potential neutral ground for evolution and intelligent design. In the case of the development of each complex organism, events unfold according to a plan. The predictability of the course of development is taken to be an expression of a genetic program, plan, or code. These terms have teleological implications, and science must concede that the developmental process—ontogeny—is an example of teleology operating in nature—of the result being implicit in the process itself.
Teleology is a key concept in understanding the merits and demerits of evolution and intelligent design.
Intelligent design proponents are keen to point out that the mechanics of the eye, for example, mark the organ as an example of design. But we know where eyes come from—from genes—and intelligent design proponents seem to be content to allow for naturalistic mechanisms taking care of the genetic transcription and translation and the assembly of the resulting proteins into functioning eyeballs during the development of organisms. Or, does the designer nudge the molecules along during every chemical process that occurs during the construction of every eyeball? Again, ID vagueness.
Now, when an eyeball is forming in an embryo, the cells are arranging themselves according to a (genetically managed) design, everyone seems to agree. Science has no problem with such a design operating in nature—when it comes to the development of an organism. But when applied across generations, design is disallowed by the doctrine of evolution. There is no justifiable reason for such an arbitrary discrimination. It is a point of doctrine. It is an ideological assertion, a posturing forced by theophobia.
The solution to the conflict is a natural teleology, a natural design. We have a model, an example. It is the design that guided each of us from fertilized ovum to (varying degrees of) adulthood. It is the process of ontogeny. If evolution—phylogeny—is embedded in an organismic life cycle, then there should be no problem adjusting evolution theory to make it conform to a design and no need to invoke supernatural designers. The stellar life cycle is the ontogeny within which planetary phylogenies can be positioned.
The very same system of protein templates—DNA—that is responsible for a caterpillar being able to dissolve itself utterly and reassemble the molecules into a butterfly, or for a fertilized ovum being able to develop into an elephant or an acorn into an oak tree, is responsible for species diversifying across generations. Why should we concede that DNA works necessarily according to a program in the one instance, but forbid it from doing so in the other?
After all, what do we want? What do WE—who regard ourselves as moderns, rationalists, scientifically minded (or at least, scientifically indoctrinated) sensible—non-superstitious—people want? We want a natural explanation of the world, one that does not rely on the "God of the gaps." And we crave meaning for our lives, individually and collectively. We want to participate in a historical plot, or telos. Every soul hungers to play a role in a meaningful story. We want a purpose that is not just our say so, our assignation of purpose to what we want to do, or find ourselves doing. We want to make a difference.
The star larvae hypothesis delivers a natural teleology, an account of our purposeful place in nature that dispenses equally with the supernatural and with the nihilism to which materialism is susceptible.
We
are neither the crown of Creation nor dust in the wind,
but creatures engineering transfiguration.
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Think
you're Bright?
Rise and Shine at http://starlarvae.blogspot.com/ |
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