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Post Reply What is the probability of alien life in our galaxy?
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30 / M / Marshall, Michigan
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Posted 6/23/16
What is the probability of alien life in our galaxy?
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26 / M / Definitely not EU
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Posted 6/23/16 , edited 6/23/16
Zero. The Galaxy is just made up of billions of random stars, rocks and gases. And every one of them is dying and will disappear into nothing. Life here on Earth was a complete accident as we have the perfect circumstances for life (the sun, water, land, the right minerals, gravity which isn't too strong, atmosphere, etc). We are completely alone, nothing else is out there. Which I think makes a lot of people very uncomfortable, so in there burning ignorance and need to know, must believe there is something else out there.
Posted 6/23/16
Nah man, because you look out of this world
Posted 6/23/16
High, very very high

Aliens are real
Posted 6/23/16
Galaxy is questionable.

The universe is possible though, considering it's technically "infinite"
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22 / M / Norway
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Posted 6/23/16

DanteVSTheWorld wrote:

Zero. The Galaxy is just made up of billions of random stars, rocks and gases. And every one of them is dying and will disappear into nothing. Life here on Earth was a complete accident as we have the perfect circumstances for life (the sun, water, land, the right minerals, gravity which isn't too strong, atmosphere, etc). We are completely alone, nothing else is out there. Which I think makes a lot of people very uncomfortable, so in there burning ignorance and need to know, must believe there is something else out there.


Did you take ''infinity'' into consideration when making this statement?
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83 / F / Bite the pillow.
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Posted 6/23/16
100% either way.
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Posted 6/23/16 , edited 6/23/16

Ryuouka wrote:


DanteVSTheWorld wrote:

Zero. The Galaxy is just made up of billions of random stars, rocks and gases. And every one of them is dying and will disappear into nothing. Life here on Earth was a complete accident as we have the perfect circumstances for life (the sun, water, land, the right minerals, gravity which isn't too strong, atmosphere, etc). We are completely alone, nothing else is out there. Which I think makes a lot of people very uncomfortable, so in there burning ignorance and need to know, must believe there is something else out there.


Did you take ''infinity'' into consideration when making this statement?


That's assuming space is 'infinite'. I'm no expert on space but I know quite a bit, but I think it's impossible for it to be infinite. It has to end, and I don't mean if you keep going you'll reach a 'dead end'. I'm talking for that space bends, but its very vast, and if you kept going you'll basically go in a huge circle.
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Posted 6/23/16

DanteVSTheWorld wrote:

Zero. The Galaxy is just made up of billions of random stars, rocks and gases. And every one of them is dying and will disappear into nothing. Life here on Earth was a complete accident as we have the perfect circumstances for life (the sun, water, land, the right minerals, gravity which isn't too strong, atmosphere, etc). We are completely alone, nothing else is out there. Which I think makes a lot of people very uncomfortable, so in there burning ignorance and need to know, must believe there is something else out there.


There are 100 billion stars in this galaxy and you are saying we are the only intelligent life among 100 billion stars? Really?

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Posted 6/23/16

voss749 wrote:


DanteVSTheWorld wrote:

Zero. The Galaxy is just made up of billions of random stars, rocks and gases. And every one of them is dying and will disappear into nothing. Life here on Earth was a complete accident as we have the perfect circumstances for life (the sun, water, land, the right minerals, gravity which isn't too strong, atmosphere, etc). We are completely alone, nothing else is out there. Which I think makes a lot of people very uncomfortable, so in there burning ignorance and need to know, must believe there is something else out there.


There are 100 billion stars in this galaxy and you are saying we are the only intelligent life among 100 billion stars? Really?



We haven't found anything what so ever. Not even a sign of an insect. Even on Mars which could house people right now as it has the right stuff for life, has no life whatsoever there. Maybe there would be a slight chance with that new planet nicknamed Earth 2.0, as it does look pretty damn similar to Earth, so I think that's the best thing you can hope for. But if there is no life even there, then yeah, we were a complete accident.
Posted 6/23/16
Probably not
Posted 6/23/16
I guarantee there's plenty of planets with single cellular organisms.
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24 / M / San Francisco Bay...
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Posted 6/23/16
Who knows. We don't really know how abiogenesis works, or how plentiful life is. But, what most people think is rare probably isn't rare at all, since most people will think of terms "what are the chances Earth has life" without realizing that as small as that probability may be, the probability at least any two planets have life is a very different question.

By analogy, the probability a highly biased coin (99% heads, let's say) flips tails once is extremely small; the probability there's at least two tails after 1000 flips is very likely (my intuition wants to tell me it's almost certain, but I'm too lazy to do the actual calculation or even a Poissonian approximation).
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Posted 6/23/16
There may very well be intelligent life that is not technologically capable of finding us. With our current technology we would only expect to accidentally find broadcasts from within 100 light years. The galaxy is 100,000 light years across. We have only been sending out interstellar capable signals for about 60 years. If someone found our signal 1000 light years away, it might take another 1000 years to get a response back. Even if they could translate what we sent out could we understand what we got back 2000 years later?

As an example suppose someone in the roman empire could sent a signal into deep space, if someone could communicate back we would have to have someone not only able to understand what an alien was saying but able to understand what the original message we sent was.

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Posted 6/23/16 , edited 6/23/16
things such as the drake equation estimate 2~50 civilizations exist in the milky way
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