- Aug 21, 2010
Why? It is extremely unlikely that life originated on Earth, is it not? It's taken as a foregone thing, but the odds are huge. It didn't just have to happen?It is extremely unlikely that all of space is lifeless
But why?I'm convinced that it is out there in some shape or form.
I'm rusty: the jump from bacteria to eukaryote is described by Nick Lane as literally a once and one time only sort of event.The implication (if Earth is the only source of life) is that life tends towards intelligence.
Sorry @mosaix, I edited post to read 'once and one time only' -- I'm being very careful.Interesting RJM. If that is true (once in the whole lifetime of the universe probability) then it would seem unlikely that the development of life on Earth is also a one-off event.
It is known that there are an infinite number of worlds, simply because there is an infinite amount of space for them to be in. However, not every one of them is inhabited. Therefore, there most be a finite number of inhabited worlds. And finite number divided by infinity is as near to nothing as makes no odds, so the average population of all the planets in the Universe can be said to be zero. From this it follows that the population of the whole Universe is also zero, and that any person you may meet from time to time are merely the products of a deranged imagination.
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