Welcome to City-Data.com Forum!
U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Great Debates
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
 
Old 09-02-2012, 11:55 PM
 
Location: Pennsylvania
1,723 posts, read 2,224,958 times
Reputation: 1145

Advertisements

Does anyone here have any personal feelings about this?

There's no evidence of them as far as we can observe, but is there evidence of our existence to creatures living hundreds of thousands (or millions, tens of millions, etc.) of lights years away? For most of the history of Earth there were no humans - signals of our technology haven't even left our galaxy yet, so how much weight does absence of observation carry in this instance?

There are many, many different questions that can be asked regarding their existence: what those planets are life, if life there may actually look similar to life on Earth because of similar environments and similar natural selection, if intelligent, would they eventually expand beyond finite bodies and travel throughout the universe, could they encounter humans - what would it be like? Are there others contemplating these thoughts on a distant world? A planet of happy cats?

What fascinating thoughts (if I may so so myself!)
Reply With Quote Quick reply to this message

 
Old 09-03-2012, 12:03 AM
 
Location: Chicago
38,707 posts, read 103,138,905 times
Reputation: 29983
How does one have a Great Debate about "personal feelings?"
Reply With Quote Quick reply to this message
 
Old 09-03-2012, 03:34 AM
 
Location: Swiftwater, PA
18,780 posts, read 18,121,941 times
Reputation: 14777
Of course there are odds are that extra terrestrials do exist. The greater question is if we would ever make contact with them or have we ever made contact? Our own Galaxy has many possibilities – but they are a long ways away.

I could picture us or an alien race creating robots (like 'The Terminator') that take over and launch probes to extract the resources of other planets. As for organic life traveling to other planets; there are many problems (at least with today's technology) – we are having a hard time colonizing our own Moon or Mars. Of course there could be another possibility – that of relying on robots to develop our frozen seeds (embryos) when a ship would get close to a possible living planet. But this is just speculation and we really cannot see the future.
Reply With Quote Quick reply to this message
 
Old 09-03-2012, 06:26 AM
 
Location: New Jersey
12,322 posts, read 17,124,630 times
Reputation: 19556
Default I think they do...

Though they are very far away. They may know of our existence if advanced-Our TV signals alone have been traveling outward for years. (Though if they see some of the reality shows they might think less of us.) Also, Life simply means just that-Life. They may be pre-industrial, Animals, plants or single cell organisms even.
Reply With Quote Quick reply to this message
 
Old 09-03-2012, 06:36 AM
 
Location: Fort Worth, Texas
407 posts, read 829,442 times
Reputation: 398
We are only one tiny speck of dust in a galaxy with billions of other planets and solar systems. And our galaxy is only one of billions, across an ever expanding Universe.

To claim that we are, without a doubt, are the only source of intelligent life, is the most arrogant statement a person can make.

After all, until recently, we didn't even know what laid beyond our own little neighborhood
Reply With Quote Quick reply to this message
 
Old 09-04-2012, 10:53 PM
 
16,294 posts, read 28,518,209 times
Reputation: 8383
The Drake Equation predicts a high probability the answer is yes!

N = R* fp ne fl fi fc L
where,
  • N = The number of communicative civilizations
  • R* = The rate of formation of suitable stars (stars such as our Sun)
  • fp = The fraction of those stars with planets. (Current evidence indicates that planetary systems may be common for stars like the Sun.)
  • ne = The number of Earth-like worlds per planetary system
  • fl = The fraction of those Earth-like planets where life actually develops
  • fi = The fraction of life sites where intelligence develops
  • fc = The fraction of communicative planets (those on which electromagnetic communications technology develops)
  • L = The "lifetime" of communicating civilizations
Frank Drake's own current solution to the Drake Equation estimates 10,000 communicative civilizations in the Milky Way.


Carl Sagan on Drake Equation - YouTube
Reply With Quote Quick reply to this message
 
Old 09-05-2012, 04:38 PM
 
Location: Mt Pleasant, SC
638 posts, read 1,594,489 times
Reputation: 466
Quote:
Originally Posted by Trance750 View Post
We are only one tiny speck of dust in a galaxy with billions of other planets and solar systems. And our galaxy is only one of billions, across an ever expanding Universe.

To claim that we are, without a doubt, are the only source of intelligent life, is the most arrogant statement a person can make.

After all, until recently, we didn't even know what laid beyond our own little neighborhood
And we've discovered, by way of spending billions of wasted taxpayer's money (and the lives of those in the Challenger) that there apparently isn't anything nearby out there.

And even if there were.. they don't seem remotely interested in us.

How is it arrogant to think that we were solely created to inhabit one planet?
Reply With Quote Quick reply to this message
 
Old 09-05-2012, 05:28 PM
 
Location: Florida
416 posts, read 630,339 times
Reputation: 373
Quote:
Originally Posted by Maryjane55us View Post
And we've discovered, by way of spending billions of wasted taxpayer's money (and the lives of those in the Challenger) that there apparently isn't anything nearby out there.

And even if there were.. they don't seem remotely interested in us.

How is it arrogant to think that we were solely created to inhabit one planet?
The only reason to think it is wasted is that we haven't spent enough to get us out of our solar system, the longer it takes the more guaranteed our extinction, especially as the universe is expanding, the gulf between us and another inhabitable world is ever growing. So long as people would rather kill each other than work together, I suppose that's fine by me.

It's arrogant to think that the universe was created for us, we who inhabit one tiny planet which we share with billions of other life forms of varying intelligence(Some now known to be nearly on par with us), having had many species evolve and go extinct before us, and likely to have many species evolve after our extinction. Mankind isn't all that special.
Reply With Quote Quick reply to this message
 
Old 09-07-2012, 10:16 AM
 
4,738 posts, read 4,432,562 times
Reputation: 2485
1 - is would be almost insane to think that a universe this size doesn't have other life forms (we are here after all)
2 - Drake can go kiss my ass. I can make up numbers and estimates too. . .we don't have enough evidence on scale

So what I don't know is

Is there any life close enough to hit us with communication. . .in any way.

What I do know
Governments love power. THey love to grow.

There is no bigger reason to grow your military than a protection against a alien threat. I think that was Sagan. So what I know is that the Government is, as of yet, unaware of any Alien Threat.
Reply With Quote Quick reply to this message
 
Old 09-07-2012, 12:09 PM
 
Location: West Texas
2,449 posts, read 5,947,779 times
Reputation: 3125
Our current technological capability to evaluate life in the galaxy/universe is akin to taking a civilization 10,000 years ago (say in present day England) and asking them to evaluate any outside of that island. They don't have the means to reasonably travel anywhere else, no method to detect anything at any real distance. But it doesn't mean there wasn't other life, obviously, just undetectable at the time given the current technology.

I don't remember the show or channel it was on... but I do remember a great analogy to the "possibility" of life beyond our own in the galaxy (let alone the universe).

A middle-aged woman (I assume a professor of some sort) was walking along the beach. She was discussing the possibility of life beyond ours in the galaxy/universe, and trying to explain the infinitism (?) of the universe. She then scooped a glass of water from the sea. She looked at it and noted there was no discernable life in it. She then proclaimed that our lack of acknowledgement of the possibility of life in the galaxy/universe would be akin to her looking at the glass and assuming there was no life in the sea.

The profoundness of that analogy itself gives me hope that we're not alone. However, benevolence or malevolence is another debate. But, how short sighted to think we'd have found life already if it existed. If we gave that glass to that person 10,000 years ago on the shore of England coast, they'd say there's no life in it... but we know today that even in that glass of sea water there is life. We just have to know how to look, what to look for, and have the technology to assist in both.
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:


Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Great Debates
Similar Threads

All times are GMT -6. The time now is 02:14 PM.

© 2005-2024, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Contact Us - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 - Top