We're never going to see the stuff outside, but by going to the South Pole and spending three years looking at the detailed structure of the night sky, we can figure out that we're probably in a universe that looks kind of like that.
我们永远看不到外面的泡泡， 但是去南极并在那里待上三年， 研究夜空的具体构成， 我们会发现 我们大概就处在一个看上去像这样的宇宙里边。