Planetary collision that formed the Moon made life possible on Earth

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Tom.G
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256bits
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Finding the answer involved varying the starting conditions, running approximately 1 billion scenarios and comparing them against the known conditions in the solar system today.
That is some kind of study - a billion scenarios.
I have often thought that the moon - er rather the collision that resulted in the earth - has had a role to play.
 
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jim hardy
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Shades of Velikovsky ?
 
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That is some kind of study - a billion scenarios.
I have often thought that the moon - er rather the collision that resulted in the earth - has had a role to play.
A billion scenarios can be calculated with a supercomputer within a couple of days at most ! A clever algorithm can reduce that calculating time by orders of magnitude !
 
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Shades of Velikovsky would invoke electrostatic forces rather than plain old Keplerian orbital evolution. He didn't "believe" in gravity.
 
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