Thursday, July 2, 2009

Weekend At Bernies 2: Electron Boogaloo (3 of 5)

In my last installment, I described what I, for this series of posts, am calling the Electron Boogaloo - a dance where a tiny particle is not just Here or There, but in weird dance of Kind of Here and Kind of There, and Kind of Nowhere, and Kind of Everywhere At Once. I described the dance hall of that dance using a scenario known to science as the Double Slit Experiment. I also included a youtube video that explained the experiment and its bizarre implications about reality at the quantum level.

Quantum particles, when not being observed or measured, do not like particles; they do not act like tiny billiard balls that simply are, and are fully, actually, definitely present, in one place, doing one thing. When they are not being observed, quantum particles are not particles in the original sense of the word. They are whirling waves of probability, in which all the possible locations and states of a particle interact with one another the way crests and troughs of waves interfere with each other. They are mysterious clouds of all the things they Could Be. Instead of just actually being one thing and not another, in one place and not another, doing one thing and not another, moving in one direction and not another, quantum phenomena are, when unobserved, in all their possible places and states at once, moving, not This Way or That, but rather This Way and That, at the same time! They are not just Here or There before we look to find out where they are. They are both Here And There until we look - until we, by observing the phenomena, by taking a measurement - collapse the wave.

This is a very counterintuitive view of the ultimate reality of things, and thus most people recoil from it intellectually. This is a problem, because quantum mechanics is irrefutable and indispensable. Everything electronic uses the quantum effects with the Alice-In-Wonderland weirdness that goes with them. Anyone who doubts this can take up this challenge - tell me how a tunnel diode works without invoking an explanation that defies common sense.

I have another way out. Quantum theory is true, but it is not the ultimate reality of things. Atoms are not more real than the objects of our sense experience, but less. It is not the case that rocks, trees, pigeons and people are simply piles or collections that come about through the collision and fusion of the tiny particles that are the ultimately real things. On the contrary, the rocks, the trees, the birds, the fish, the dolphins, the dogs, the people, the planets and stars, are what are truly real. They are not composed of particles in the sense of being aggregates put together mechanically out of their smallest component pieces. They are composed of particles in the sense of being divisible into them. There is a difference. The particles derive their reality from the real things of our everyday lives, not the other way around. They exist, to be sure, but their actuality is compromised. They are not fully real. They are quasi-real. Their existence is foggy, nebulous, Not All There. They do not enjoy the same degree of objective, observer-independent reality that are enjoyed by us, or by the objects of our everyday experiences. We are more real than our protons, neutrons, and electrons. It is not the case that we do what we do because our smallest bits are doing their thing, in obedience to the laws of physics. It is the other way around - we make our choices, we decide what to do, and move ourselves into action. As a consequence, our bodies, which are divisible into particles, move those particles in motions which, due to the uncertainty of quantum mechanics, are not in violation of the any deterministic laws of physics, because on the level of the micro-particles, there are no deterministic laws! Causality, when applied to human action, is not from the bottom-up, but from the top-down. We are wholes, not mere collections of parts, and our actions are holistic. We move our parts, rather than being moved by them. Epicurus was right that our freedom is related to atomic swerve. But he was wrong about the motive direction of causal power. Our free actions cause the particles in our bodies to have their particular Epicurean swerve. Rather than being grounded in and caused by that swerve from the bottom-up, they are the source of our atoms' particular "random" swerves from the top-down.

I’ll never forget when I was in class attending my graduate seminar on the Philosophy of the Human Person, and one of the people there opined that, if there is such a thing as a soul, we should expect to see some of the physically determined motions of some particles in our body (in our brain, presumably) veer off their otherwise pre-determined paths, and sort of Do Their Own Thing. I do not recall anyone labeling that intuition as such at the time, but I do not hesitate to do so now - that is the classic Epicurean Swerve intuition, the clinamen.

John Searle said something similar in his 1984 Reith lecture:

In order for us to have radical freedom, it looks as if we would have to postulate that inside each of us was a self that was capable of interfering with the causal order of nature. That is, it looks as if we would have to contain some entity that was capable of making molecules swerve from their paths. (Minds, Brains, and Science; Cambridge: Harvard University Press, 1984, p. 98 - Well, not necessarily molecules, and Searle knew that. Earlier in the same lecture, he tries to flippantly dismiss such a swerve on the quantum level - unsuccessfully in my view)

I held my tongue in class that day. I didn’t want to be the only person in that class to bring up quantum physics. I knew that it would make no impact - it would only peg me as an insufferable know-it-all. They wouldn’t get. I don’t even get it. Who does? It’s too crazy! But I knew he was wrong. We should never expect to see anything of the sort, because nature does not allow us to see anything on the quantum level with that kind of precision. The Uncertainty Principle forbids it. Mother Nature has a kind of basic, primordial modesty about Her. No matter how badly scientists want to look up Her skirt and see Her Goodies, they will not succeed. She’s keeping her Secrets. Laplace’s Ideal Observer will never exist, at least not in this physical world. Maybe God could theoretically know all the positions and momentums of every particle in the universe, but I am inclined to doubt even that - until the waves of the various particles collapse, there is no one totally real thing on that level for even God to know.

The fact that, at the level of quantum phenomena, there is an ineliminable statistical indeterminacy, means that there is a lot of room leftover from the gaps in physics for possibility of active influences from invisible, non-physical agents, i.e. souls or spirits. The soul fits perfectly in the quantum causal gap. The indeterminism at the level of the quantum does not prove that there are such things, but that is unnecessary. The point is, we already know that we are free agents capable of introducing new, spontaneous, unprecedented causal chains into the physical world every time we make a new decision. The only thing that ever made anyone doubt that was a commitment to Materialism and the Laplacian Determinism that it entailed. Quantum physics has killed that Determinism. It is no longer a viable natural philosophy. Since deterministic Materialism is dead, there is no more barrier to accepting the prima facie evidence of our own obvious and self-evident liberty of action (which we cannot, in practice, consistently deny). So with no more reason to doubt that which we cannot help but believe anyway, we can accept it as true, along with what it entails - that there is more to us than our physical bodies. We are souls, too.

Here is the link to installment 4 of this series:

http://thenakedontologist.blogspot.com/2009/07/weekend-at-bernies-2-electron-boogaloo_04.html

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