No. The probability that we are alone is essentially zero.
Imagine someone on a planet where the scientific method was fully developed only about 500 years ago, claiming to know that they are alone in the entire 13.7 billion year old universe that contains at least a sextillion stars.
Imagine someone on a planet where the scientific method was fully developed only about 500 years ago, claiming to know that they are alone in the entire 13.7 billion year old universe that contains at least a sextillion stars.
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Actually it's a bad point because it doesn't take into account the Fermi paradox (and how can you calculate the probability with so little information anyway? All we have is that there's no evidence of anyone one despite the fact that there should be if we weren't alone).
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I believe it is likely that we are not alone, that there are other civilizations out there. However, the vastness of space, and the speed limit (speed of light) is such that I do not think it is likely that we (or they) will ever detect the presence of another civilization. The distances are too large.
That said, it is an opinion. As a scientific matter, it is unverifiable, thus not falsifiable, so (as a scientific matter) it cannot be considered true.
That said, it is an opinion. As a scientific matter, it is unverifiable, thus not falsifiable, so (as a scientific matter) it cannot be considered true.
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Most likely we are the only technological civilisation in our past light cone as any other technological civilisation before us would have already colonised the galaxy and built structures we could easily detect (not to mention that they'd be here already, which they very clearly aren't).
Those who brandish the Drake equation don't seem to understand that the majority of terms in it we have absolutely no clue about. Those who claim that light speed is a limit are innumerate idiots who can't even calculate how long it'd take to spread throughout a galaxy (it's in the tens millions of years with only slower than light travel, not long at all in a 13.7 billion year old universe).
Those who brandish the Drake equation don't seem to understand that the majority of terms in it we have absolutely no clue about. Those who claim that light speed is a limit are innumerate idiots who can't even calculate how long it'd take to spread throughout a galaxy (it's in the tens millions of years with only slower than light travel, not long at all in a 13.7 billion year old universe).
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No, probably not, but we can be separated by time just as much as we can be separated by linear distance. The Sun is at least a third generation star chronologically. Life may have evolved on many planets around many stars many times. The Sun is a relatively "young' Middle aged-star main sequence star.