[tankerdude]

im Kind of stumped at the whole advanced life form contacting us thing.

1. We didnt even emit any real radio waves until just a century or so ago. How did they detect it to know to emit something to us? 2. How much power would that entity have to emit from that distance to be detectable by us? 3. And for civilizations more than 50 light years away, how did they know to even push a signal in our direction if they didn’t sense a single thing except maybe a certain type of atmosphere?