modulate the emissions from their galaxy in a way that cannot be due to a natural state or natural process.
OK, what is the modulation, and when would we have seen it?
Would we notice if a galaxy had an unusual spectrum?
(I think you can’t make a galaxy flicker or anything like that because it is too big. Though seems fine to concentrate the power and then have it flicker.)
OK, what is the modulation, and when would we have seen it?
Would we notice if a galaxy had an unusual spectrum?
(I think you can’t make a galaxy flicker or anything like that because it is too big. Though seems fine to concentrate the power and then have it flicker.)