The Great Filter can be thought of as a probability barrier. It consists of the existance of one or more highly improbable evolutionary transitions or steps whose occurrence is required in order for an Earth‐like planet to produce an intelligent civilization of a type that would be visible to us with our current observation technology. You start with billions and billionsThe Great Filter can be thought of as a probability barrier. It consists of the existance of one or more highly improbable evolutionary transitions or steps whose occurrence is required in order for an Earth‐like planet to produce an intelligent civilization of a type that would be visible to us with our current observation technology. You start with billions and billions of potential germination points for life, and you end up with a sum total of zero extraterrestrial civilizations that we can observe. The Great Filter must therefore be powerful enough — which is to say, the critical steps must be improbable enough— that even with many billions rolls of the dice, one ends up with nothing: no aliens, no spacecraft, no signals, at least none that we can detect in our neck of the woods....
|Title||:||Where Are They? Why I Hope the Search for Extraterrestrial Life Finds Nothing|
|Number of Pages||:||10 Pages|
|Status||:||Available For Download|
|Last checked||:||21 Minutes ago!|
Where Are They? Why I Hope the Search for Extraterrestrial Life Finds Nothing Reviews
Basically the argument is that if one finds signs of life on Mars (a planet very close to earth) then the chances of life existing on other planet would be greater, since it shows that it evolutionary process is in fact not very improbable. Yet the writer concludes that this is very bad news. It shows that there are what he calls "Great Filters" (basically catastrophes) that could easily wipe out intelligent (or what could go on to become intelligent) life in its infancy. The more advanced the stages of these dead life forms are, the greater the danger to our own existence, since if it happened out there then what is there to tell us that it won't happen here? The writer whoever hopes that these great filters are all behind us. Meaning that he hopes we find no life outside earth. He believe if we actually do find signs of life on Mars or any other planet then it is not a cause for celebration, and most people fail to realize this. If these great filters are behind us it means that evolutionary process is indeed a very improbable thing to happen (which he believes it is and he disagrees with Carl Sagan who believed it's inevitable) and since it has already happened to us then we have a better chance of survival. So it's something like this. It was interesting.
Not really a book but rather a short essay on the search for ET life. I found it fascinating read and would recommend it to anyone interested in the topic of life on other planets.
Very short prelude to some of the ideas he explores in titles like Superintelligence. I can't remember where I read this idea but I think it's fitting: If we find that we are alone in the universe, that would be incredible; If we find that we are not alone in the universe, that would be incredible.
Well written, even though I dont agree with it. At all.
interessante ma davvero troppo breve.
Each night, when I look at the stars, I can't avoid wondering if there's other being like me, watching the sky and asking him/her/alienself the same question. I enjoy reading about the Fermi paradox, reflecting on it, and quite honestly this essay is brilliant. It invites you to think much more about the subject.I hope the Great Filter is behind us at the moment.
* Figuras recurrentes: Extraterrestre.
An interesting, perspective. It makes you think...