CrazyNeutrino said:
An astrophysicist says we might not be able to distinguish aliens from the laws of physics
An astrophysicist has put forward an interesting thought experiment this week: what if a civilisation of extraterrestrial life was advanced enough, it’s possible that we might confuse its presence with the laws of physics.
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Not news. There are actually two parts to this. The one part is collecting so much data that real signals get lost amongst the statistical outliers expected as part of the random noise of natural signals.
The other part is that the more advanced an alien civilization is, the more its communication signals resemble random natural noise.
I suppose a third part is that we expect alien communications to be tightly beamed, so unless we happen by extremely rare chance to be along the direction of the beam we’ll hear nothing.
That’s communications. But suppose we’re actually looking at an alien intelligence a couple of metres away. Would we recognise it? This was a big topic in science fiction some 50 to 60 years ago.