"It also raises the intriguing possibility that if life first originated on another planet then it must mean all Earth organisms, including humans, evolved from alien life." (BBC report.)
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Originally Posted by Doug
The logic of this demonstrated line of thought absolutely eludes me. Why on Earth is life not allowed to have originated here? Why must it have originated elsewhere? What is wrong with our planet, that disqualifies it from being the cradle of life, or even at least Earthly life?
Doug
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It does seem illogical. This is a great place to start life off ... I certainly like it here!
These 'panspermia' ideas seem to be a continuation of the trend over the centuries to demote us more and more from the centre of the universe. They've all been 'true' up till now, who knows about this one?