[KineticLensman]

Yes, but I am suggesting that the assumption is highly unlikely, given the low chances of two civilisations (ours and theirs) reaching this point simultaneously, given the massive age of the universe.

If the Earth's entire history up until now is reduced to a single day, then our technological civilisation has only existed for the last few seconds before midnight. It seems unlikely that the civilisation next door also coincidentally appeared in the same few seconds.