This morning’s In Our Time was on a philosophical staple, materialism. A great fan of the programme, I found this one disappointing.
I think it was because it treated materialism too simply, as one thing, more or less consistent over time. In particular, the programme failed to distinguish between materialism, physicalism (that everything is physical or an epiphenomenon of the physical) and naturalism (another rather broad doctrine, roughly that reality can be accounted for by natural explanations). It might be thought that this critique is one for the seminar not the radio. But I think it explains why the programme made for a rather messy discussion, to my mind, and had to fall back on a rather tendentious idea to hold it together, namely that materialism, whatever it might be, is more or less automatically anti-religious.
On that point, Christian thought was presented as simply dualistic, with matter being bad, and mind or soul being good. But the reality is that in Christian thought matter is not simply bad. After all, the doctrine of the incarnation is that God became man, which is to say that somehow divinity embraces matter. This is the reason, as Pauline scholars are no doubt exhausted with saying, that Saint Paul did not deploy the categories of matter and mind, but flesh and spirit – flesh being matter that has gone bad, and the life of the spirit including matter that is good, not least the resurrection of the body. You may not believe in the incarnation or the resurrection of the body. But that Christians do should suggest that they are not simply anti-materialists.
From a different period, that of ancient Greek philosophy, I sensed a different kind of distortion. This could be summed up as asking whether it is true that the ancient Greek materialists – Thales, Epicurus and the like – were materialists much in our sense?
Take Thales' statement that everything is one and that ‘one’ is water. First, this did not stop him believing in gods. Second, what he meant by water was not hydrogen dioxide. Thus, if the appeal of water to Thales is taken as being that he believed everything comes from water – by analogy with ice, liquid water and steam – then this does not imply a scientific materialism. That requires an inference of the sort that Y is made of X if Y arises from X, one that only comes with modern science. Thales could probably not make that inference. It would be better to say that for Thales, it is not very clear what was meant by saying all was one. For example, it could be that Thales thought water is completely changed in its different manifestations; it could be that the appeal of water for Thales was actually that it enabled him to transcend a physicalist conception of reality altogether, water uniting both ice (matter) and steam (as a gas, like spirit). Or water might have been a metaphor for an entirely mystical view of ultimate reality. After all, he also said: ‘All things are full of gods.’
In a different way, Epircurus’ atomistic materialism is arguably less materialistic than it might first appear. For example, it includes what can be called ‘soul atoms’ that animate ‘body atoms’ in living creatures. Epicurus argued that soul atoms are too delicate to exist apart from the body, so he believed humans do not survive the death of the body. But he too believed in the existence of gods, indeed encouraged his followers to pray to the gods, in order to be receptive to the divine life, since it is their blessed happiness that Epicureans seek. Whether or not Epicurus thought the gods were made of material atoms of some description is unclear.
Descartes was discussed in the programme, of course, in relation to Cartesian dualism. But he is someone else who is routinely characterised in one way and so misunderstood. He is not, I think, a dualist, believing that there are two sorts of things – mind and matter – from which it is easy to drop the mind part, since, to a certain kind of scientific metaphysics, it seems a bit silly to say that mind exists outside of a materialist account of nature. Rather, he was what might be called a dual-aspect monist. For example, in the sixth meditation he writes: ‘I am not present in my body merely as a pilot is present in a ship. I am most tightly bound to it, and as it were mixed up with it, so that I and it form a unit.’ This is to say that he thought human beings were matter/mind composites. A soulless body, one that is dead, is as unappealing a state of affairs to be in as a bodiless soul, according to Descartes. Moreover, Descartes did not believe that matter was the ultimate nature of things. Rather, he thought that matter springs from a transcendent realm that can generate the form of matter.
This leads straight to modern physics, a crucial part of any discussion of materialism, though as Melvyn Bragg admitted, they ran out of time to do so. For with quantum physics it is perfectly reasonable to suggest that matter is a manifestation of something that is mind-like or conscious. Eugene Wigner said, ‘Study of the external world leads to the conclusion that the content of consciousness is an ultimate reality.’ The explicit naming of consciousness as ultimate reality might be a step too far for most physicists. A more mainstream view is that of Roger Penrose. He is a Platonist, pointing to the ultimate reality as the realm of mathematic forms. He talks of how this Platonic world emerges from the mental world; the physical world emerges from the Platonic; and the mental emerges from the physical. That mutual triangulation of emergence is essentially mysterious. But he sums up his position thus: ‘To me the world of perfect forms is primary (as was Plato’s own belief) – its existence being almost a logical necessity – and both the other two worlds are its shadows.’ I’m not entirely convinced by his interpretation of Plato. But the point here is that modern physics leads possibly most contemporary physicists away from any position that might easily be labeled as materialism: like the subatomic particle which emerges from a probability wave, matter emerges from something that is more like mind and, moreover, has the quality of necessity - that being mathematics.
In other words, if physics is the fundamental science, that would suggest that science itself might not best be thought of as a form of materialism. It is just that scientists who are not quantum physicists talk as if it were because it is useful and easier to do so.
In short, contemporary materialism, which is perhaps better labeled physicalism, might not only be a rather rare doctrine in the history of philosophy, but one that whilst with advocates today, will prove in time to be something of an anomaly.