translation.en: What Einstein did not realize was that, if you took our Sun and you crushed it down to six kilometers -- so you took a million times the mass of the Earth and you crushed it to six kilometers across, you would make a black hole, an object so dense that if light veered too close, it would never escape -- a dark shadow against the universe.
translation.zh: 不过爱因斯坦并没有意识到 如果你把太阳 压缩成直径6公里的球 – 也就是说你把相当于地球质量一百万倍的物质 压缩成直径6公里的球， 你将制造出一个黑洞， 这个物体的密度非常之大 以至于如果光离它太近，也将无法逃脱－ 在宇宙中留下一个巨大的黑影，