Astronomers may have found giant alien 'megastructures' orbiting star near the Milky

[stevebowers]

I think that one scenario that still inspires some hope and effort at SETI is the concept of the Galactic Internet
http://www.centauri-dreams.org/?p=28408
Civilisations could send long, detailed messages to each other, including recipes for technology, encoded minds, news and idle chit-chat. Any megastructure we discover might be a transmission node for such a system. Nevertheless we might not expect to intercept any messages from such a distant node, unless we were very lucky or they deliberately target us.