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But is it? We can detect things about the chemical makeup of the atmospheres of extra solar planets. Our own atmosphere is broadcasting the likely presence of
by eloff 4y ago
But is it? We can detect things about the chemical makeup of the atmospheres of extra solar planets. Our own atmosphere is broadcasting the likely presence of life, plus near certainty of industrial civilization. We could detect that up to some distance with our technology. What could advanced aliens detect? What if they used gravitational lensing to magnify the signal?
We can’t rule it out.
Let’s hope the dark forest explanation for the Fermi paradox is wrong - because we’ve long had a campfire sending smoke up that’s been visible for many, many light years.
- russdill 4y agoOur signal for oxygen and other bio-signatures is so much stronger than the signals we have been sending recently and it's been going out for...quite some time.
- rvnx 4y agoMaybe they found Earth already and they just find it boring: "yet another planet likely filled with idiots"
- saalweachter 4y agoI mean, the Great Oxygenation Event is ~2 billion years in the past, and the Cambrian Explosion is only half a billion years ago. If intelligent, space-faring aliens checked it out, there's a 75% chance they arrived while the most interesting thing on Earth was, well, I can't think of anything that wasn't "technically before the Cambrian but like, only by 50 million years". Fungi? We should look for oxygen-rich atmospheres, but we need another signal before we jump in a rocketship and go looking for someone to talk to or eat.