Wasn't this always likely assumed to be some catastrophic space event that just lined up right for us? On the life speculation part that people enjoy: If you w

Wasn't this always likely assumed to be some catastrophic space event that just lined up right for us? On the life speculation part that people enjoy: If you were going to try communicate with the galaxy it seems strange not use an already powerful source in your neighbourhood like a star, then encode your message in blocking that out, perhaps with huge expanding/contracting panels on a satellite.