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InevitableSignUp t1_iyd4bzc wrote

Reply to comment by TenBillionDollHairs in Extragalactic SETI looks for life beyond the Milky Way. But where? In game theory one solution is a Schelling point — a single event that draws different group's attention. A binary neutron star merger could act as one, because observers across the universe will all be looking in the same direction. by EricFromOuterSpace

Upvoted for the disappointment in point 6, but I have a question - does their laser have to be coming from the opposite direction? Or would we be able to pick up a laser coming through what we’re looking at from the side? And would it hypothetically be traceable back to its point of origin by ‘tracking’ it back along the beam?

… without the half a millions years of delay being anything to worry about, of course.

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