Sunday, 18 January 2015

Chthonic to Sublime and Back Again: why missing links are God’s problem too. (Also, the Argument from Fermi.)

Two possibilities exist: Either we are alone in the Universe or we are not. Both are equally terrifying.

ARTHUR C. CLARKE

For all the teeming diversity of the gods that someone, somewhen, has decided just might be worth worshiping  – and we could be talking about Yahweh or Allah, Ishtar or Thor –  they all have something in common. Despite running the gamut from the chthonic to sublime, and apart from superficialities like Thoth’s ibis-like head or the Buddha’s retractable penis, the fact is that they are all decidedly human. They hardly represent a random sampling of all possible gods. Rather they’re a conspicuous subset that are more or less like humanity and, crucially, they all speak to decidedly human concerns. While I lean towards the idea that we have a need to populate the heavens with forces that reflect our needs , note that this isn’t an argument against their existence per se. It’s entirely possible that the proliferation of deities that care about humanity’s concerns might arise out of the actual existence of powers concerned with the cares of humans. That said, this is as good an argument for Tiamat or Baal as it is for Vishnu or Ahura Mazda. If you challenge an unbeliever on account of Christ they could point out the godly horde you’ve ignored, and say , “I’ve just gone one better”.  


So the properly agnostic and newly minted proto-believer in the market for a god can’t help notice that there are gaps between the usual suspects. In between the franchise operations of the big boys – Christianity, Islam, Judaisim, Hinduism etc – and aside from  the Ma & Pa operations of smaller religions there are odd gaps where gods should be. We’re all familiar with the idea of a god with the Big Three: omnipotence, omniscience and benevolence. But where are all the gods that are omniscient but powerless, or omnipotent but blind? What about a god that’s omnipotent only on Tuesdays (Thank you, Pascal Boyer)?  Or, to give an example from David Eagleman’s Sum: Forty Tales from the Afterlives what if god does in fact exist and is intimately concerned with the lives of the special creations for whom he made the universe: single cells. What if these constructs we call humans are just not on the scale god cares about?





The itch that drove me to write this post was a discussion about evolution and intelligent design. Intelligent design looks for instances of irreducible complexity in the natural world, on the theory that a phenomenon – usually a feature of a biological organism – that can’t  be explained by the incremental accretion of adaptations is prima facie evidence of the existence of an intelligent designer, a god. A well-worn trope of this kind is the eye: what use, they say, is half an eye? More contemporary examples might include the motive equipment of certain viruses or the explosive back-end of the bombardier beetle. Without getting into an argument about the merit of these examples, I want to draw out the thinking that’s implicit in this approach: It only allows for two alternatives: either evolution by natural selection is responsible, or else an ‘intelligent designer’ – read as ‘My God’ – did it. This ignores other possible explanations and sets up a false dichotomy: an artificial division of a range of possibilities into a rigid binary opposition. In the spirit of exploring all possibilities: if in fact an instance of ‘irreducible complexity’ was found that couldn’t be explained by evolution by natural selection, is the only other choice intelligent design? I can think of at least one alternative: a so-called ‘thermodynamic miracle’. This would be an event – such as oxygen spontaneously becoming gold – that makes use of natural processes and has a finite probability, albeit one whose odds are so long they are unlikely to occur in the lifetime of the universe. My point isn’t to advocate for one of these ideas over the others, rather it’s to illustrate how the standard approach is restricted, and in fact relies on this restriction for its persuasiveness. To take another example, the argument from a First Cause sets up a dichotomy where either the universe was created at some point by a cause that caused itself- a self-causing cause - or otherwise we have an porportedly ‘impossible’ infinite regression. By what evidence is infinite regression deemed impossible? And if ‘intelligent designer’ usually implies ‘my god’ so does ‘first cause’: the argument usually comes with extra associations attached to the first cause that aren’t merited by the argument itself.  As we’ve discussed before – nothing in the argument says anything about omnipotence or unity of being let alone tridents or lightning bolts. 

Of course, logic is a fickle blade, and it can cut the other way too. Last time I touched on the Anthropic Principle, the idea that any explanation of us and our universe has to be consonant with our existence in it. It has to account for – allow for – the existence of us. Life seems to be such an odd thing and the prerequisites for its generation so chancy that any explanation needs to account for the long odds that must have been played the one time that we know for sure it happened. Maybe given universe enough and time life is just something that can happen in the role of the cosmic dice. But it’s hard to even know if we have something to explain if we don’t know exactly how long the odds are.  For all the amazing development of molecular biology and associated fields in the past century we are far from knowing all the antecedents for life, let alone thinking, reasoning human life. Attempts to attach estimates to the variables that might count – such as the Drake equation – are pretty hairy: they’re necessarily parochial and can only include those things we know are required for our kind of life and obviously don’t (can’t) take account of the unknown unknowns. What are all the factors that lead to a) a sun which can b) support planets which can c) support a kind of life that can d) include the kind of intelligence which might do things like e) building space ships?

Interestingly enough, even if you put relatively conservative numbers into the Drake equation, you get a picture of a universe that’s positively teeming with life. Hell, the fact that this is so, despite our never having met any of this life even has a name: the Fermi Paradox. The Fermi paradox is a mainstay of science fictional exploration precisely because it’s such an ill-posed problem: we have no idea what the contributing factors might be. Maybe there is intelligent life out there, but it’s so different that we would never notice one another. Maybe there’s some kind of bottleneck that all civilizations have to go through and few manage it: cf. the development of nuclear weapons or fossil fuel-based economies. A particular favourite of mine is the playful idea that apocalypse by zombie – or mass Spontaneous Necro-Animation Psychosisis relatively common in the universe, and that each time a hopeful new space-faring society starts out to conquer the galaxy it meets a infected planet and the inevitable epidemic of zombie-ism nips that galactic empire in the bud. I’m not just conducting a whiplash tour of wacky out-there ideas; I have a point, though possibly just barely. It seems to me while zombies might be on a list of solutions to the Fermi paradox, I don’t remember seeing the possibility of special creation by a concerned deity being seriously discussed as a possibility. Imagine the implications of that: we, alone in the universe, are the only kind of creatures like us. Then imagine this is precisely how our creator wanted it...


XKCD: Fish