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假如外星人生活在某个星球的海底,他们会怎样看待他们的宇宙?他们的宇宙观又会怎样随着他们的扩张活动发生变化,特别是当他们探出水面时?
If the aliens lived on the bottom of a certain planet, what would they think of their universe? How would their cosmology change with their expansion activities, especially as they exploded?