tomcatwarneOPOcean City, Plumouth, Devon, England UK17,106 posts
The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilization and humanity's lack of contact with, or evidence for, such civilizations. The basic points of the argument, made by physicists Enrico Fermi and Michael H. Hart, are:
The Sun is a typical star, and relatively young. There are billions of stars in the galaxy that are billions of years older. Almost surely, some of these stars will have Earth-like planets. Assuming the Earth is typical, some of these planets may develop intelligent life.
Some of these civilizations may develop interstellar travel, a technology Earth is investigating even now (such as the 100 Year Starship).
Even at the slow pace of currently envisioned interstellar travel, the galaxy can be completely colonized in a few tens of millions of years. According to this line of thinking, the Earth should already have been colonized, or at least visited. But no convincing evidence of this exists. Furthermore, no confirmed signs of intelligence (see Empirical resolution attempts) elsewhere have yet been spotted in our galaxy or (to the extent it would be detectable) elsewhere in the observable universe. Hence Fermi's question, "Where is everybody?"
Ebola and other viruses are quite intelligent. We don't like to think of these extremely small living forms as highly intelligent beings. But very few things other than viruses, bacteria etc can take down a so called higher life form. In some of these form's humans can not eradicate them before they eradicate a human. I don't think we have to look out to the universe for higher intelligence. But these things may already exist there in forms we simply are to un-evolved to understand.
tomcatwarne: The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilization and humanity's lack of contact with, or evidence for, such civilizations. The basic points of the argument, made by physicists Enrico Fermi and Michael H. Hart, are: The Sun is a typical star, and relatively young. There are billions of stars in the galaxy that are billions of years older. Almost surely, some of these stars will have Earth-like planets. Assuming the Earth is typical, some of these planets may develop intelligent life.Some of these civilizations may develop interstellar travel, a technology Earth is investigating even now (such as the 100 Year Starship).Even at the slow pace of currently envisioned interstellar travel, the galaxy can be completely colonized in a few tens of millions of years. According to this line of thinking, the Earth should already have been colonized, or at least visited. But no convincing evidence of this exists. Furthermore, no confirmed signs of intelligence (see Empirical resolution attempts) elsewhere have yet been spotted in our galaxy or (to the extent it would be detectable) elsewhere in the observable universe. Hence Fermi's question, "Where is everybody?"
Archaic thoughts. Who, today, believes other planets, or wherever, have to be like earth to have life? There are non-carbon alien dinasours colonizing Uranus. Resolute
good question Tom.But this is the question where our logic doesnt meet the fact.That means our logic fails.cos if think logically there must have been at least 10,000 earth like planets with an intelliegent ,technologically advanced civilisitions in our galaxy.But we never met one yet,and we cant just find out ,why?We just dont have a logical answer to this question.
May be civilizations just never get to the point where they get so advanced to be able to contact?they destroy themselves or their planets gets destroyed by natural causes. Intelliegent human history is only about 50,000 years ,and we are not sure if we will survive another 50,000 years from now.May be 100,000 years are just not enough to have a contact with other civilizations which are vast cosmic distances away.
tomcatwarne: The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilization and humanity's lack of contact with, or evidence for, such civilizations. The basic points of the argument, made by physicists Enrico Fermi and Michael H. Hart, are: The Sun is a typical star, and relatively young. There are billions of stars in the galaxy that are billions of years older. Almost surely, some of these stars will have Earth-like planets. Assuming the Earth is typical, some of these planets may develop intelligent life.Some of these civilizations may develop interstellar travel, a technology Earth is investigating even now (such as the 100 Year Starship).Even at the slow pace of currently envisioned interstellar travel, the galaxy can be completely colonized in a few tens of millions of years. According to this line of thinking, the Earth should already have been colonized, or at least visited. But no convincing evidence of this exists. Furthermore, no confirmed signs of intelligence (see Empirical resolution attempts) elsewhere have yet been spotted in our galaxy or (to the extent it would be detectable) elsewhere in the observable universe. Hence Fermi's question, "Where is everybody?"
Maybe they all plateau, go back to the caves, or get themselves killed. Maybe they just don't exist.
tomcatwarne: The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilization and humanity's lack of contact with, or evidence for, such civilizations. The basic points of the argument, made by physicists Enrico Fermi and Michael H. Hart, are: The Sun is a typical star, and relatively young. There are billions of stars in the galaxy that are billions of years older. Almost surely, some of these stars will have Earth-like planets. Assuming the Earth is typical, some of these planets may develop intelligent life.Some of these civilizations may develop interstellar travel, a technology Earth is investigating even now (such as the 100 Year Starship).Even at the slow pace of currently envisioned interstellar travel, the galaxy can be completely colonized in a few tens of millions of years. According to this line of thinking, the Earth should already have been colonized, or at least visited. But no convincing evidence of this exists. Furthermore, no confirmed signs of intelligence (see Empirical resolution attempts) elsewhere have yet been spotted in our galaxy or (to the extent it would be detectable) elsewhere in the observable universe. Hence Fermi's question, "Where is everybody?"
Gosh..Tom....i don't understand why does anybody or you have to see it like invasion if other life forms do exist among us? Why we will even want to entertain the thoughts that aliens will colonize our world?! Maybe, just maybe, the owner of "other civilization" just like to benefit from our existence. I mean, just because we "human" have some stinky habits of colonizing others, it doesn't necessarily mean that "aliens" will also want to do the same?! (i guess this is where i get to say that hollywood needs to stop making all those films where they almost exclusively portray aliens as some "bad" creatures who are just dying to harm us humans).
We will also need to get out of the traditional thoughts which lead us to believe that the definition of "life" is or should be the same with other life forms should they really exist. In other words, one doesn't have to look or behave just like us human to be "alive"?
I think it would be arrogant of humankind to think that we are the only ones out here, whose to say that our galaxy is so far away that we cant yet contact other life forms out there.
Or perhaps in the grand scheme of things galactically speaking, we are still in our infancy in terms of our communications and technology after all we are still burning fossil fuels to get around and until we develop modes of transport that require other forms of energy we are limited by how far we can explore the stars.
Or maybe absolute proof that intelligent life exists out there is that none of them have tried to contact us....
MADDOG69: Maybe it really does take 16+ billion years to get to this. Maybe we are the Magnus Opus of the Universe.
We would expect to notice them if they reached our stage of development.
But maybe they have. The stakes for the species get higher as civilisation advances and integrates. We're now turning our world into a global system and one mistake could reverse all of human history.
When the lights went out in Rome they still shone upon Delhi. Yet in a global village there are no other villagers.
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The Sun is a typical star, and relatively young. There are billions of stars in the galaxy that are billions of years older.
Almost surely, some of these stars will have Earth-like planets. Assuming the Earth is typical, some of these planets may develop intelligent life.
Some of these civilizations may develop interstellar travel, a technology Earth is investigating even now (such as the 100 Year Starship).
Even at the slow pace of currently envisioned interstellar travel, the galaxy can be completely colonized in a few tens of millions of years.
According to this line of thinking, the Earth should already have been colonized, or at least visited. But no convincing evidence of this exists. Furthermore, no confirmed signs of intelligence (see Empirical resolution attempts) elsewhere have yet been spotted in our galaxy or (to the extent it would be detectable) elsewhere in the observable universe. Hence Fermi's question, "Where is everybody?"