(December 27, 2015 at 9:39 am)pool Wrote: Consider if there were 50 total planets.
Consider earth is one of this 50 planets.
So we have 49 planets remaining.
Each planet will have a 50-50 chance of having intelligent life in it.
So 50-50 chance for each planet of 49 planets leaves you with a 50-50 chance of life in these 49 remaining planets overall.
But if you consider earth, which has life in it, then the odd are no longer 50-50 as we have at least 1 planet with life. Which would mean that the probability of aliens in the 49 remaining planets are now higher.
But wait, some people from earth does some space travelling and find out that 3 of the planets have no life in them.
Then these 3 planets no longer have a 50-50 chance of having life in them, they have 0 chance of having life in them.
That leaves us with what? 50 planets with 1 planet we are sure there is life and 3 planets we are sure there is no life.
So that means the probability is now staked against the existence of aliens, one which increases as we find more planets with no life in them.
Face it, there are no aliens. We are alone. There's no point in waiting.. Quite sad actually.
How many planets in the "goldilocks zone" have we actually explored so far, Pool? Heck how many planets have we actually explored within our own solar system? We have spent our entire lives as a civilization on this tiny planet and we are still discovering new lifeforms here to this very day...
If life came naturally and the conditions are satisfied on other places, life will be there as well... and as time passes we are discovering more and more places that do satisfy these conditions, so in reality the odds of finding life is only increasing.
Quote:To know yet to think that one does not know is best; Not to know yet to think that one knows will lead to difficulty.
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