The Aliens are Silent because They're Dead

That's the proposal from a team of astrobiologists at The Australian National University , I don't necessarily agree with Dr Chopra and his team but you can't deny it's awful quiet out there , in their paper published in Astrobiology they propose a possible reason for the silence.

Dr Chopra said their theory solved a puzzle.
"The mystery of why we haven't yet found signs of aliens may have less to do with the likelihood of the origin of life or intelligence and have more to do with the rarity of the rapid emergence of biological regulation of feedback cycles on planetary surfaces," he said.
Wet, rocky planets, with the ingredients and energy sources required for life seem to be ubiquitous, however, as physicist Enrico Fermi pointed out in 1950, no signs of surviving extra-terrestrial life have been found.

A plausible solution to Fermi's paradox, say the researchers, is near universal early extinction, which they have named the Gaian Bottleneck.
"One intriguing prediction of the Gaian Bottleneck model is that the vast majority of fossils in the universe will be from extinct microbial life, not from multicellular species such as dinosaurs or humanoids that take billions of years to evolve," said Associate Professor Lineweaver
www.sciencedaily.com...

Bellow is a link to the paper in PDF form , seems well reasoned and thought out to me although a little depressing to imagine.
adi.life...

Dead aliens tell no tales.

a reply to: gortex

Do the Nordics, Pleaidians, Dracos, Greys, etc. know they are dead?

originally posted by: NewzNose
a reply to: gortex

Do the Nordics, Pleaidians, Dracos, Greys, etc. know they are dead?

Do they actually exist ?
There are many story's but I've seen no proof.

a reply to: gortex

Enrico Fermi helped bring to fruition the most destructive weapon on the planet. He is become death, destroyer of worlds.

I hardly accredit his philosophy of life.

As far as extraterrestrial life, how you think life got here?

We are extraterrestrials.

While other intelligent life almost surely exists somewhere else in the universe just due to the shear size of the universe, I do think that life that exists "right now" may be rare, and may not really be close enough to us for us to have an occasion to find them (or them find us).

Let's consider just our part of our galaxy -- let's say our quarter of it, or our "quadrant" of it, in Star Trek terms. Sure -- there may be thousands and thousands of places in our quadrant where life had a good chance to emerge. Maybe some life did emerge, and went on to become intelligent and technological.

However, "Time" is also a factor here. Maybe one of those civilizations emerged 200 million years ago (a very short time in cosmological terms, but a long time for biology). It could have flourished for 2 million years (again, a long time for biology as we know it) and then died out. Then another might have come along elsewhere, and then eventually died out...

...There could have been several hundred technological civilizations just in our quadrant of the galaxy that lived and died in the cosmologically short span of the past 200 million years, but maybe there are none, or maybe only one or two, that are around today.

That could be why we haven't had an occasion to meet them. The possible time frame during which they existed and died out is just too large.

I guess the big question is even if there were 1000s of advance alien races what is it that we should hear? It is suggested that the time line for an advance race to spew the Galaxy with electronic waves is a very short window of a few 100 years before they surpass the need to use omni type air waves. If this is the case then it would be luck of the draw that we happen to hear another race within this golden zone of their advancement.

Our signals are dwindling too so who knows. Even with us they are not that far away yet to really give another race a chance to hear them. In the picture below the dot shows us just how far 200 light years is to us and I don't think we are even that far yet. The funny part is if we do hear anything it could be a million years from the past.

a reply to: NewzNose

Do the Nordics, Pleaidians, Dracos, Greys, etc. know they are dead?

Nah, we don't tell them because they get upset quite easily.

a reply to: gortex

Hmmm...dunno about all that but our assumptions may be wrong seeing as we're not so advanced to even travel in person to the closest planet yet. We may be giving ourselves way too much credit for intelligence.

I think it might just be a case of avoiding a bad neighborhood.

3 can keep a secret if 2 are dead!

a reply to: Brotherman

"Better to remain silent and be thought a fool than to speak out and remove all doubt."
-Abraham Lincoln

originally posted by: intrptr

As far as extraterrestrial life, how you think life got here?

We are extraterrestrials.

So are you saying that the spark of life can not happen on earth and so it had to come here first? If that is the case how did that spark happen in the first place to come here. If it could happen somewhere else in a galaxy and travel here on a comet then it can happen here too independently.

Or are you saying that the elements that make us were first created in a super nova, but I fail to see how that fits into all of this to suggest we are extraterrestrial in nature.

Every dot in this Hubble deep field photo is a galaxy. It was taken from a dark point in space with a light exposure of 10 days.



How can they make this assumption, let alone a theory?

a reply to: NewzNose

Do the Nordics, Pleaidians, Dracos, Greys, etc. know they are dead?

Why couldn't they be alien GHOSTS? Ever think of that? Geez... read a book. (kidding)

As far as the deafening radio silence... my own thoughts are that communications can take many, many forms... and the absence of radio messages blasting through the cosmos tells us not much.

a reply to: Morrad

I think your missing the point. There are no aliens sending out any kind of signals in several spectrum's that we can identify. If you think Aliens from another galaxy are traveling here and somehow found us well I really doubt it. Evidently life like ours is very very rare. All the evidence so far, after years of SETI and others points to the fact that we are very alone. Whether or not there are some microbes on a planet, so far away we can never get there, is just a thought experiment for all practical purposes. What we want is to find intelligent life. This flies in the face of those who believe in UFO's of course. Unfortunately, there are no spacecraft from alien planets coming here. Aliens didn't build the pyramids, its just us dumb ass humans and our primitive monkey brains. If we can somehow not kill ourselves or get wiped out by a asteroid, maybe in five thousand years or so, we will be able to branch out to the stars.


V

a reply to: IAMTAT

"Better to remain silent and be thought a fool than to speak out and remove all doubt." -Abraham Lincoln

A fav quote from the Lincolnator ... so assume I'm wise from all the threads I DON'T post on.

Forgive me...

a reply to: gortex
Or are yet to exist?

originally posted by: Soylent Green Is People
While other intelligent life almost surely exists somewhere else in the universe just due to the shear size of the universe, I do think that life that exists "right now" may be rare, and may not really be close enough to us for us to have an occasion to find them (or them find us).

Let's consider just our part of our galaxy -- let's say our quarter of it, or our "quadrant" of it, in Star Trek terms. Sure -- there may be thousands and thousands of places in our quadrant where life had a good chance to emerge. Maybe some life did emerge, and went on to become intelligent and technological.

However, "Time" is also a factor here. Maybe one of those civilizations emerged 200 million years ago (a very short time in cosmological terms, but a long time for biology). It could have flourished for 2 million years (again, a long time for biology as we know it) and then died out. Then another might have come along elsewhere, and then eventually died out...

...There could have been several hundred technological civilizations just in our quadrant of the galaxy that lived and died in the cosmologically short span of the past 200 million years, but maybe there are none, or maybe only one or two, that are around today.

That could be why we haven't had an occasion to meet them. The possible time frame during which they existed and died out is just too large.

Excellent post, although it's counterpoint is that 'they' may currently be single celled creatures just starting the evolutionary journey and may well become advanced enough to think about interstellar travel millennia after we cease to exist.

a reply to: uncommitted

Could be , there's another recent theory that the Universe is still young and we are early to the party , guess that kinda makes us and the others the Neanderthals of the Universe.

There's too many stars, too many planets and too much time for there to be no other intelligent life in the cosmos.

Life seems to be a chemical inevitability, and there are untold billions of petri dishes out there.

Our solar system is on the far edges of our galaxy and so is incredibly remote considering the distances involved. So there's a good chance we live just too far away from anything for anything to ever visit us........hopefully...