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Hi, here are a pair of questions that I can't find the answer:

What's the difference between an orbifold and a Calabi-Yau manifold?

How many Calabi-Yau manifolds there exist for cubic meter of space?

What's the difference between an orbifold and a Calabi-Yau manifold?

How many Calabi-Yau manifolds there exist for cubic meter of space?

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