They already did last I heard, nothing.rcs619 said:I know they're supposed to point a bunch of radio telescopes at it, but that's not a given either. Even further assuming they ever used radios, it really comes down to when they invented them due to the time-lag involved. If they didn't have radios before 1480 years ago, there won't be any transmissions out this far for us to hear.
Besides that, the exact opposite of what you're saying could also be true.
We're talking about hypothetical aliens advanced to the point that they're building stellar scale super stuff
For what you're saying, they'd have to have moved from a radio using civilization no later than 1480 years prior to having this super advanced project progressed to the point we're speculating on now. That could be possible, we don't really have a frame of reference on how long it should take to get to that point for even ourselves, let alone another species that could advance at an entirely different rate.
I'd think it just as likely to be the other way around. That such a species could have progressed to something else well before starting their project and we'll have missed the opportunity to detect such things by centuries or millenia (if they ever used it at all)