Dartmouth physicist, known for doubting skeptics, wins 2019 Templeton Prize

[Jim__]

17. A short interview of Marcelo Gleiser by Scientific American.

The full interview is here.

An excerpt:

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So, a message of humility, open-mindedness and tolerance. Other than in discussions of God, where else do you see the most urgent need for this ethos?

You know, I’m a “Rare Earth” kind of guy. I think our situation may be rather special, on a planetary or even galactic scale. So when people talk about Copernicus and Copernicanism—the ‘principle of mediocrity’ that states we should expect to be average and typical, I say, “You know what? It’s time to get beyond that.” When you look out there at the other planets (and the exoplanets that we can make some sense of), when you look at the history of life on Earth, you will realize this place called Earth is absolutely amazing. And maybe, yes, there are others out there, possibly—who knows, we certainly expect so—but right now what we know is that we have this world, and we are these amazing molecular machines capable of self-awareness, and all that makes us very special indeed. And we know for a fact that there will be no other humans in the universe; there may be some humanoids somewhere out there, but we are unique products of our single, small planet’s long history.

The point is, to understand modern science within this framework is to put humanity back into kind of a moral center of the universe, in which we have the moral duty to preserve this planet and its life with everything that we’ve got, because we understand how rare this whole game is and that for all practical purposes we are alone. For now, anyways. We have to do this! This is a message that I hope will resonate with lots of people, because to me what we really need right now in this increasingly divisive world is a new unifying myth. I mean “myth” as a story that defines a culture. So, what is the myth that will define the culture of the 21st century? It has to be a myth of our species, not about any particular belief system or political party. How can we possibly do that? Well, we can do that using astronomy, using what we have learned from other worlds, to position ourselves and say, “Look, folks, this is not about tribal allegiance, this is about us as a species on a very specific planet that will go on with us—or without us.” I think you know this message well.

I do. But let me play devil’s advocate for a moment, only because earlier you referred to the value of humility in science. Some would say now is not the time to be humble, given the rising tide of active, open hostility to science and objectivity around the globe. How would you respond to that?

This is of course something people have already told me: “Are you really sure you want to be saying these things?” And my answer is yes, absolutely. There is a difference between “science” and what we can call “scientism,” which is the notion that science can solve all problems. To a large extent, it is not science but rather how humanity has used science that has put us in our present difficulties. Because most people, in general, have no awareness of what science can and cannot do. So they misuse it, and they do not think about science in a more pluralistic way. So, okay, you’re going to develop a self-driving car? Good! But how will that car handle hard choices, like whether to prioritize the lives of its occupants or the lives of pedestrian bystanders? Is it going to just be the technologist from Google who decides? Let us hope not! You have to talk to philosophers, you have to talk to ethicists. And to not understand that, to say that science has all the answers, to me is just nonsense. We cannot presume that we are going to solve all the problems of the world using a strict scientific approach. It will not be the case, and it hasn’t ever been the case, because the world is too complex, and science has methodological powers as well as methodological limitations.

And so, what do I say? I say be honest. There is a quote from the physicist Frank Oppenheimer that fits here: “The worst thing a son of a bitch can do is turn you into a son of a bitch.” Which is profane but brilliant. I’m not going to lie about what science can and cannot do because politicians are misusing science and trying to politicize the scientific discourse. I’m going to be honest about the powers of science so that people can actually believe me for my honesty and transparency. If you don’t want to be honest and transparent, you’re just going to become a liar like everybody else. Which is why I get upset by misstatements, like when you have scientists—Stephen Hawking and Lawrence Krauss among them—claiming we have solved the problem of the origin of the universe, or that string theory is correct and that the final “theory of everything” is at hand. Such statements are bogus. So, I feel as if I am a guardian for the integrity of science right now; someone you can trust because this person is open and honest enough to admit that the scientific enterprise has limitations—which doesn’t mean it’s weak!

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