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JohnOliverismysexgod t1_j8hzmjk wrote

When I was a kid, I learned that any instances after the one that took would not survive because such instance would be the perfect food, so it would be gobbled up by the life already here.

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Ok-Dog-7149 t1_j8iukfx wrote

This would seem to make some assumptions about relative proximity between the two.

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Geobits t1_j8izxui wrote

If they were close in time, sure. It's hard to imagine a biogenesis event now, for example, because existing life is so ubiquitous that it'd have a hard time competing against everything.

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Anarchaeologist t1_j8izjp5 wrote

Do you have an area in mind that this might happen? Every environment on Earth that's suitable for organic life's survival seems to already be swarming with microbes

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