The Fermi Paradox - Why we haven't been contacted by aliens

[ChiliConCarnage]

Originally Posted by Cochise

Even if they were "close" by our galaxy's standards, travel between the two places would take too long. The cultures would be too isolated to make contact with each other.

A bit like saying the pony express or telegrams could never allow us to have instant-contact with people in China. Life the last few centuries has changed at an unbelievable if not unsustainable rates.

I'm not sure why they need to find planets Humans could have survived on. Life finds a way under bizarre circumstances. Even Humans as they exist are only around due to ancestors surviving hard to imagine catastrophes.