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Aliens & UFOs
Are we alone in the universe?
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<blockquote data-quote="Tyler" data-source="post: 35296" data-attributes="member: 1443"><p><strong>Re: Are We Alone In The Universe ?</strong></p><p></p><p>Personally, I don't believe in any gods so the Bible argument is moot for me.</p><p></p><p>Due to the sheer amount of stars in the universe, there is certainly life elsewhere.</p><p></p><p>There are anywhere from 200 Billion to 400 B. stars in the Milky Way Galaxy, so I'll estimate it to 300 B. stars. There are estimated to be 100 B. galaxies in the observable universe. Let's also guess that every galaxy has about the same number of stars (unlikely, but go with it)</p><p></p><p>Let's give a very low probability of chance that a star has a planet that is able to form life, say one in every million stars. While the real statistic is probably much higher, I'll go low just to be safe.</p><p></p><p>Now let's say one in a half a million planets form life. Given the current known information about abiogenesis, that's again a very low estimate to complement the data. On one in every half a million planets with life, the inhabitants evolve into creatures with intelligence. Judging by the current Theory of Evolution, this is yet again a very low estimate.</p><p></p><p>That all comes out to 120,000 intelligent civilizations in the known universe. While the input numbers should be much higher, I went low to be on the safe side. </p><p></p><p>So, according to my probabilities, we are certainly not alone in the universe</p></blockquote><p></p>
[QUOTE="Tyler, post: 35296, member: 1443"] [b]Re: Are We Alone In The Universe ?[/b] Personally, I don't believe in any gods so the Bible argument is moot for me. Due to the sheer amount of stars in the universe, there is certainly life elsewhere. There are anywhere from 200 Billion to 400 B. stars in the Milky Way Galaxy, so I'll estimate it to 300 B. stars. There are estimated to be 100 B. galaxies in the observable universe. Let's also guess that every galaxy has about the same number of stars (unlikely, but go with it) Let's give a very low probability of chance that a star has a planet that is able to form life, say one in every million stars. While the real statistic is probably much higher, I'll go low just to be safe. Now let's say one in a half a million planets form life. Given the current known information about abiogenesis, that's again a very low estimate to complement the data. On one in every half a million planets with life, the inhabitants evolve into creatures with intelligence. Judging by the current Theory of Evolution, this is yet again a very low estimate. That all comes out to 120,000 intelligent civilizations in the known universe. While the input numbers should be much higher, I went low to be on the safe side. So, according to my probabilities, we are certainly not alone in the universe [/QUOTE]
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Are we alone in the universe?
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