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Tomis 976 days ago | link | parent

I don't see how the Fermi paradox is relevant or helpful in any way. What you fail to understand is how large our galaxy (never mind the Universe) is and what time frames we are talking about. Grasp this:

1) The Milky Way Galaxy contains an estimated 200–400 billion stars. Let's assume that humans build a machine that can check if a star has life around it in only one second.

Now, to check one billion stars for life you would have to wait 31 years, which would be reasonable, but to check 200 billion stars you would need roughly 6000 years.

The observable Universe contains 3 to 100 × 10^22 stars (about 80 billion galaxies). You do the math how long it would take to check just a tiny, tiny fraction of that number, assuming you would have such a machine, capable of giving an answer per second.

2) The Universe is about 13 billion years old. Life on Earth is an estimated 3 billion years old. Humans, as they look today, appeared about 200000 years ago. Humans developed means of communication with other civilizations only 50-100 years ago.

What exactly do you hope to discover in a timespan that can't even qualify as a bleep on the Universe's radar? The evolution of humans is not synchronized to the evolution of other forms of life. Humans (or any other form of life in the Universe, for that matter) can go extinct without warning. It would take a long time for our radio waves to reach another civilization and the other way around, and by the time they reach their destination the intended receivers may be long gone.

TL/DR - the Universe is huge, and very, very old. Don't underestimate the difficulty of finding life.



urbanjunkie 963 days ago | link

So, in a discussion about finding alien life, you don't think the Fermi Paradox is relevant, OK.

Your condescending response is amusing, but also demonstrates that you've failed to understand what the Fermi Paradox. I would humbly suggest that you read up on it at the Wikipedia page, as most of your objections are dealt with there.

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