Yes, it is very hard (it also can be impossible but we don't know), but if you had enough matter, or infinit matter maybe it could happen.Not if evolution is random. I can not do the math, but I would say it is impossible. Just look at our earth and how much change it has gone through in the last 4.5 billion years. So even if you have everything else identical, you still have to hit an exact point in time. Just like twins are not 100 percent identical. There is variation that takes place during development.
The sun would have to be the same size as our sun and the same age. The earth would have to be the same size and the same distance from the sun. The moon would have to be the same size and the same distance from the earth. The moon is following an exact path as it moves away from the earth that could not be duplicated in a random situation.
The same way that when you throw a dice 6 times it is very hard to get 5 times the same number. But it you throw it 1.000.000 times then it is quite probable to get 5 times the same number. We just would have to have almost, if not, infinit matter.
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