10 June 2018

Aeon: What if ET is an AI?

One possibility is that this machine is super-capable, exceeding our human capacity for cognitive or analytical tasks. Such an AI might be exceedingly hard to understand, either in terms of its underlying motivation or because of practical barriers of communication bandwidth. For this device, talking to us might be like talking to an infant. Or trying to discuss the collected works of Shakespeare using pictographs. An alien system optimised for processing vast data streams might not even be able to downgrade its pace enough to notice that we’re trying to talk, whether we use technology or not. [...]

Encountering an alien AI would not only point to our own possible future, but also prompt a curious shift in our worldview. When Nicolaus Copernicus proposed in the 1500s that the Earth was not central in any way to the Universe, he set in motion the development of a critical scientific idea: that there is nothing cosmically special or significant about us. But meeting an ET-AI could turn that realisation on its head: if the only intelligence we meet is machine in nature, then we would be special, after all. [...]

But a recognisable encounter with even one savant machine would indeed change everything. It would tell us that the galaxy is awash with intelligence, and could suggest that our future might be one of a vestigial, fading biological presence. Most of all, this discovery would tell us that we might currently be the only natural minds consciously aware of these facts. That’s because the biology that could produce AI explorers would likely evolve or go extinct on timescales far shorter than the persistence of these interstellar machines, and we already live in a galaxy that is 10 billion years old.

Finding an AI-ET could unlock our own cosmic exploration by lighting a path forward. It might also offer insight into the nature of its creators, those ancestral intelligences, presumably in biological form. Exactly what this investigative process would look like is extremely hard to imagine. Even a single savant AI might not come in one physical package but rather a swarm of tinier components incredibly hard to digest. However, let’s assume that by interrogation or literal disassembly we eventually solve the mystery of the AI-ET’s origins. We might find evidence of an organic species like us – or we might discover only machines all the way down.

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