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We are on the old problem of working out if there is life out there which is great but before we can go to far we need to find something outside Earth evidencing life..Mars, the various Moons a pinch of suggestion in a comet. .. and we will move a little further with our speculation but not far.
Logic well not logic but a wild unsupported belief tells me there must be life everywhere but the reality is there is no evidence of life such that we have any useful plugins for the Drake equation or any other that seek to introduce "odds".
I think the answer to will probably be one of inference from a future understanding of the chemical process of life.
I personally believe, which means nothing really, that life is an inevitable result of a chemical process ...
If life is mere chemical reaction it will be everywhere ...
It seems too arogant to entertain a proposition that we are it.
However the vastness of just our little part of the galaxy indeed the universe means that even powerful signaling systems may be well below adequate or productive.
Nevertheless someone hopefully will find a way to make my sceptism old hat.
We dont know what we dont know is perhaps our greatest hope...
I hope someone from elsewhere can visit and tell us we are not alone and not eat us.
Alex
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