72
Astronomer: If Earth Is Average, We Should Find Alien Life Within 60 Light-Years
(www.sciencealert.com)
Futurology: A space for the discussion of the future of us - the human organism, and the relationship we have with the spaces we may inhabit.
I have only two rules for this community:
** Respect the Community.**
** Respect one another.**
Freedom of speech comes with freedom to experience consequence.
Enjoy this community, enrich yourself as you enrich others. If you have any questions about this community or how it is run, you are welcome to contact the moderator.
Asstronaut
We're looking for (relatively) high powered radio signals. Regardless of how alien critters evolve, they're going to have the same constraints on their radio technology as we do.
It is possible they'd have some reason for pouring a tonne of energy into loud radio broadcasts, but if they are using radio for communications (as our SETI searches assume), then they will have lots of incentives to stop screaming into the void. At which point, our searches will not find them.