Stephen Hawking takes a hard line on aliens
The eminent scientist warns that if there is life out there, we probably don't want it messing with us
Sigourney Weaver as Ripley in Alien Resurrection (1997). Photograph: Cinetext Collection/Allstar Picture Library
Has Stephen Hawking been rewatching his box set of the Alien movies?
It would appear so, as his opinion of whether we should make contact with any alien life forms we discover in the future has suddenly hardened. According to a new documentary series he has made for the Discovery Channel : "If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans."
Hawking believes we would be well-advised to keep the volume down on our intergalactic chatter and do all we can to prevent any "nomadic" aliens moseying our way to take a look-see. Should they find us here tucked away in the inner reaches of the solar system, chances are they'd zap us all and pillage any resources they could get their hands on. Our own history, says Hawking, proves that first encounters very rarely begin: "Do take a seat. I'll pop the kettle on. Milk? Sugar?"
"Such advanced aliens would perhaps become nomads, looking to conquer and colonise whatever planets they can reach," says the theoretical physicist in Into the Universe with Stephen Hawking. "To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like."
Any alien who manages to reach Earth is, by definition, going to be far more advanced than us. Contrary to the claims of our own alien abductees, Hawking thinks it unlikely aliens will come all this way just to prod and poke us, take some samples, and pop back home in time for Show and Tell. Logic dictates that we will be the Stoke to their Chelsea.
It's all well and good Hawking warning us now, but couldn't he have told us to be more careful a few decades ago? After all, we've been pumping out our musings for all to see and hear since the very first radio telecommunications were broadcast a century ago. Any alien with their antennae pointed in our direction would already have quite a good sense of our intellectual capabilities. All they need do is take their pick from any of our cultural offerings being broadcast into the ether. (Let's just hope they didn't tune in when Battlefield Earth was showing, as that paints us in a poor light on so many levels.)
It's good to see that, since the last time I discussed this subject here on Cif, no more "Cosmic Calls" have been transmitted into space by people such as Professor Alexander Zaitsev, the chief scientist at the Russian Academy of Science's Institute of Radio Engineering and Electronics, who is a keen promoter of METI (Messaging to Extra-Terrestrial Intelligence).
And there's also not been any update or addition to "Principle 8" of the International Astronomical Union's Central Bureau for Astronomical Telegrams, which states:
No response to a signal or other evidence of extraterrestrial intelligence should be sent until appropriate internal consultations have taken place. The procedures for such consultations will be the subject of a separate agreement, declaration or arrangement.
However, Nasa did beam the Beatles' Across the Universe towards the vicinity of Polaris in 2008, in the hope that an alien would take a sympathetic view of John Lennon's rather hopeful lyric that "Nothing's gonna change my world." (Personally, if I was an alien in possession of a pimped-up laser, I would set it to "destroy" upon hearing a song with the opening line: "Words are flying out like endless rain into a paper cup.")
Really, though, what should our strategy be for contacting aliens? Should we shut the hell up? Or should we keep transmitting? (Maybe they will catch some episodes of Lost and be able to tell us what on earth was going on? Or maybe Lost is a big shout out sent from a distant planet and we just don't realise yet?)
And what if a keen astronomer gives us notice that an advance party of aliens has entered the solar system and is headed our way at full speed? Should we all fall to the ground – à la Flash Forward – and play dead? Or should we lay an extra place-setting at the table and drape a massive peace flag in low orbit?
Thankfully, there are some people on this planet who have given this subject some serious thought. Earlier this year, Paul Davies, the chair of the Seti (Search For Extraterrestrial Intelligence) Post-Detection Task Group, told Jon Ronson what his strategy would be, upon making contact:
We're talking about two civilisations communicating their finest achievements and their deepest beliefs and attitudes. I feel we should send something about our level of scientific attainment and understanding of how the world works. Some fundamental physics. Maybe some biology. But primarily physics and astronomy…
Our appreciation of art and music is very much tied to our cognitive architecture. There's no particular reason why some other intelligent species will share these aesthetic values. The general theory of relativity is impressive and will surely be understood by them. But if we send a Picasso or a Mona Lisa? They wouldn't care. I mean the phonograph disc that went off on Voyager had speeches by Kurt Waldheim and Jimmy Carter. That's a world away from what we should be doing…
One of the first things we might want to say is that there's no unitary government on this planet, no unitary political philosophy or ideology. We're a great place for freedom, if not anarchy, and so we're putting together the best possible coherent package for your consideration, but expect it to be followed up with all sorts of bizarre and incoherent babble that you must treat with some discretion. Although how we'll express all this when we only have mathematics in common will be something of a challenge.
I think Paul Davies is a tad optimistic about how gentlemanly an alien encounter would be. I'm with Stephen Hawking on this one. Even if we were show to them we can calculate pi to a billion decimal places, aliens are bound to be trigger-happy when they meet us for the first time.
And given our past form, who would blame them?
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