Marriage and Fundamental Physics
Among other important elections, on November 4 Californians will be voting on Proposition 8, a measure to amend the state Constitution in order to ban same-sex marriages. The polling has been very close, with a possible late break toward a “Yes” vote; this would effectively overturn a California Supreme Court decision from this May that held that same-sex couples had a right to marry under the equal protection clause of the California Constitution. Eventually, of course, gay marriage will be accepted throughout the country, and we will look back on today as the bad old days of discrimination. But that’s cold comfort to the couples who would like to celebrate their love for each other right now. You can donate and learn more about the measure at No On 8.
We are occasionally asked why a Physics Blog spends time talking about religion and politics and all that nonsense. A perfectly correct answer is that this is not a Physics Blog, it’s a blog by some people who happen to be physicists, and we talk about things that interest us, blah blah blah. But there is another, somewhat deeper, answer. Physics is not just a technical pastime played with numerical simulations and Feynman diagrams; nor is it a purely instrumental technique for unlocking Nature’s secrets so as to build better TV sets. Physics, as it is currently practiced, is a paradigm for a naturalistic way of understanding the world. And that’s a worldview that has consequences stretching far beyond the search for the Higgs boson.
Charles Taylor makes an admirable stab at a very difficult task: understanding the premodern mindset from our modern vantage point. (Via 3 Quarks Daily.) There are many ways in which our perspective differs from that of someone living five hundred years ago in a pre-scientific age, but Taylor emphasizes one important one:
Almost everyone can agree that one of the big differences between us and our ancestors of five hundred years ago is that they lived in an “enchanted” world, and we do not; at the very least, we live in a much less “enchanted” world. We might think of this as our having “lost” a number of beliefs and the practices which they made possible. But more, the enchanted world was one in which these forces could cross a porous boundary and shape our lives, psychic and physical. One of the big differences between us and them is that we live with a much firmer sense of the boundary between self and other. We are “buffered” selves. We have changed.
Our ancestors lived in an enchanted world, where the boundary between the physical and the moral and the spiritual was not very clearly drawn. It made perfect sense, at the time, to attribute to the external world the same kinds of meanings and impulses that one found in the human world — purposes, consciousnesses, moral judgments. One of the great accomplishments of modernity was to construct a new way of understanding the world — one based on understandable, formal rules. These days we understand that the world is not magic.
This change in perspective has led to extraordinary changes in how we live, including the technology on which we are sharing these words. But the consequences go enormously deeper than that, and it is no exaggeration to say that our society has still not come fully to grips with the ramifications of understanding the world around us as fundamentally natural and rules-based. That’s the point at which the worldview suggested by science has had a profound effect on moral reasoning.
For our present purposes, the most important consequence is this: notions of “right” and “wrong” are not located out there in the world, waiting to be discovered, in the same sense that a new kind of elementary particle (or even a new law of physics) is located out there in the world. Right and wrong aren’t parts of the fundamental description of reality. That description has to do with wave functions and Hamiltonian dynamics, not with ethical principles. That is what the world is made of, at a deep level. Everything else — morality, love, aesthetics — is up to us.
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