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Aliens think we are smaller than bacteria.

Maybe we are really smaller than bacteria in the eyes of alien creatures. In the vast universe, there are countless galaxies and countless spheres like the earth. There must be life, that is, aliens. If there is, I believe their civilization must surpass us a lot, because our earth has never been peaceful, and human beings have been killing each other until now. If there is only one country on the earth, and people of all colors are included in one country, I believe that the civilization and technology on the earth will advance thousands of miles, and we will also become strong in the universe!