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How many civilisations are there in the Milky Way?

How many civilisations are there in the Milky Way?

(8:28) Carl Sagan explains the Drake equation. Devised by Frank Drake in 1961, the Drake equation is used to estimate the potential number of extraterrestrial civilisations in the Milky Way.

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Guest: johno (2650 days ago)
if this was only an estimate then it becomes educated bullshit
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if this was only an estimate then it becomes educated bullshit
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Guest: Google it if u dont believe me (2651 days ago)
Ah the Drake equation. As brilliant as it is useless.
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Ah the Drake equation. As brilliant as it is useless.
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London1 London1 (2650 days ago)
The chances that 1% of lifeforms evolve to have radio astronomy seems wildly optimistic to me.
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The chances that 1% of lifeforms evolve to have radio astronomy seems wildly optimistic to me.
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Diddly Diddly (2651 days ago)
It is probable that other life exists. If I was to bet my life on it, I'd say yes, life, similar to our definition, does exist elsewhere in the universe. Hawking is right though, we shouldn't go searching for it, as other life forms may be drastically more advanced, able to trod over us like Hitler's panzers in western Poland...
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It is probable that other life exists. If I was to bet my life on it, I'd say yes, life, similar to our definition, does exist elsewhere in the universe. Hawking is right though, we shouldn't go searching for it, as other life forms may be drastically more advanced, able to trod over us like Hitler's panzers in western Poland...
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Guest: jpfunk96 (2644 days ago)
Even if other civilizations exist in the galaxy, what difference does that make to our daily life. Not a bit, we should focus our energy on seeking intelligent life on this one.
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Even if other civilizations exist in the galaxy, what difference does that make to our daily life. Not a bit, we should focus our energy on seeking intelligent life on this one.
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Guest: paxo (2650 days ago)
right, so its anyones guess then?
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right, so its anyones guess then?
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Guest: Bob (2650 days ago)
Is that the same "Frank" Drake who defeated the Spanish Armada?
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Is that the same "Frank" Drake who defeated the Spanish Armada?
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Guest: (2650 days ago)
This is the most stupid thing i have heard.. the closer you get to the center of the milky way, its imposible for life.. seeing that most of the stars are at the center, you can wipe 200 billion stars.. then it gets speculative and sci fi
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This is the most stupid thing i have heard.. the closer you get to the center of the milky way, its imposible for life.. seeing that most of the stars are at the center, you can wipe 200 billion stars.. then it gets speculative and sci fi
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Guest: (2117 days ago)
Latest comment: I like the way the happy music starts when we get from just 10 to millions of civilizations. The Drake equation is useful not so much for estimating N as for exposing the areas and levels of our ignorance. And, it would seem, our loneliness.
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Latest comment: I like the way the happy music starts when we get from just 10 to millions of civilizations. The Drake equation is useful not so much for estimating N as for exposing the areas and levels of our ignorance. And, it would seem, our loneliness.
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