Aliens - common or rare?Posted By Daryl Crowley |
I think life is plentiful in the Universe but maybe widespread. If every 1000th solar system had life there were still be a millions of life forms in our galaxy alone.
I think intelligent life is probably plentiful in the Universe buy even more widespread, in not only space but in time as well. If every 1 billionth solar system produced intelligent life, that would make for a couple hundred in our solar system alone, and millions in the Universe. However they could be greatly separated in time.
I don't think there are any technological civilizations CURRENTLY any in our neck of the woods or we should find a history of their EM radiation.
In my opinion, plentiful life in the universe does not equate to "we are being visited".
It would be cool (I hope) but if the next civilization is 10, 000 light years away, we may never know of each other's existence. Light-years are will not be easily traversed by any civilization, despite anyone's assertion that the exponential growth of technology will overcome those distances. They may, but it won't be easy and it won't be common at the local level. In theory we can work it all out on paper, but in practice I think the time, resources, and proximity of technological life will make interstellar trade an exceedingly rare event. It may stand a better chance in the core or in globulars where more opportunities (solar systems) exist in a more confined space.
Daryl
I think intelligent life is probably plentiful in the Universe buy even more widespread, in not only space but in time as well. If every 1 billionth solar system produced intelligent life, that would make for a couple hundred in our solar system alone, and millions in the Universe. However they could be greatly separated in time.
I don't think there are any technological civilizations CURRENTLY any in our neck of the woods or we should find a history of their EM radiation.
In my opinion, plentiful life in the universe does not equate to "we are being visited".
It would be cool (I hope) but if the next civilization is 10, 000 light years away, we may never know of each other's existence. Light-years are will not be easily traversed by any civilization, despite anyone's assertion that the exponential growth of technology will overcome those distances. They may, but it won't be easy and it won't be common at the local level. In theory we can work it all out on paper, but in practice I think the time, resources, and proximity of technological life will make interstellar trade an exceedingly rare event. It may stand a better chance in the core or in globulars where more opportunities (solar systems) exist in a more confined space.
Daryl