Alien invasion is a constant theme of Hollywood science fiction, from War of the Worlds to Independence Day. But Harvard psychologist Steven Pinker, author of the new book Enlightenment Now, argues that highly developed civilizations tend toward peace and tolerance, and that advanced aliens are much more likely to be friendly.
“I think it’s not inconceivable that wars between countries will go the way of slave auctions and dueling, just be seen as too ridiculous for any reasonable country to engage in,” Pinker says in Episode 296 of the Geek’s Guide to the Galaxy podcast. “And maybe that’s the natural arc of civilizations, including ones on other planets.”
But wouldn’t alien brains be so different from ours that it would make mutual understanding impossible? On the contrary, since aliens would have been subject to the same evolutionary pressures as us, they would probably possess an appreciation of science—and maybe even beauty—similar to ours.
“It’s conceivable that other intelligences have a sense of beauty that is not wildly different from ours,” Pinker says, “because they too might be expected to be attuned to counter-entropic forces and patterns in nature.”
An example of this is our appreciation of the bright colors and symmetrical configuration of many flowers. “Flowers are designed to attract bugs,” Pinker says, “but they also attract us, and our brains are pretty different from bugs’ brains.”
But there are limits. Vast differences in culture and biology would definitely lead to some significant differences when it comes to art appreciation.
“It may be pushing things to say that little green men from Alpha Centauri would groove to Thelonious Monk,” Pinker says. “I don’t think I’d push it that far.”
Listen to the complete interview with Steven Pinker in Episode 296 of Geek’s Guide to the Galaxy (above). And check out some highlights from the discussion below.
Steven Pinker on progress:
“Nowadays in the most conservative part of the world, namely the Islamic Middle East and North Africa, in many ways they are as liberal, even a bit more liberal, than people of the same age in, say, Sweden or Norway in the early 1960s. At first when I saw that graph I just couldn’t believe it, what are you talking about? People in Libya today are more liberal than people in Sweden in the early sixties? But if you actually think about it, if you go back to people’s attitudes in the sixties, the idea of say gay marriage—you ask a Swede in 1960 what they thought of gay marriage, they’d think you were nuts. Or women’s equality. We tend to underestimate how much the world has changed, particularly when it comes to generation by generation turnover.”
Steven Pinker on AI:
“If Elon Musk was really serious about the AI threat he’d stop building those self-driving cars, which are the first kind of advanced AI that we’re going to see. Now I don’t think he stays up at night worrying that someone is going to program into a Tesla ‘take me to the airport the quickest way possible,’ and the car is just going to make a beeline across sidewalks and parks, mowing people down and uprooting trees, because that’s the way the Tesla interprets the command ‘take me by the quickest route possible.’ That’s just idiotic, you wouldn’t build a car that way, because that isn’t an example of artificial intelligence — plus he’d get sued and there’d be reputational harms. You’d test the living daylights out of it before you let it on the streets.”
Steven Pinker on science fiction:
“If you take Moral Philosophy 101, or even better you dive into the technical literature in moral philosophy in the philosophy journals, it’s kind of all science fiction. It’s ‘what would happen if …?’ I mean, it’s not very good science fiction, as literature, but it’s putting together an imaginary world and exploring the consequences, to see what you really deep down believe. A simple example is the trolley problem—you know, imagine there’s a hurtling trolley and if it continues on its way it’ll kill five workers on the track who don’t see it coming, but if you flip the switch it’ll be diverted and kill only one person. Should you flip the switch? And all kinds of variations that start to go into the realm of science fiction. But it’s these stretches of the imagination that clarify what you really believe. So science fiction and moral philosophy are often pretty similar.”
Steven Pinker on academia:
“Just yesterday I got a slew of letters after I published an article in the Wall Street Journal just mentioning climate change, and a lot of the readers wrote back and said, ‘Don’t tell me you believe in climate change. That just comes out of universities and everyone knows that there’s just a left-wing echo chamber in the universities.’ Now that’s total and utter nonsense, I know these people—the climate scientists and planetary scientists and geophysicists, and they are not left-wing fanatics—but when you’ve got the university culture developing a reputation for orthodoxy and suppression of controversy, which is true in some parts of the university, it taints the university system as a whole, to the detriment of the entire society.”