Physicist Lawrence Krauss: "We are more insignificant than we ever imagined. If you take the universe - everything we see: stars, galaxies and clusters, everything we see - if you get rid of it, the universe is essentially the same. We constitute a 1 percent bit of pollution. In the universe that is 30% dark matter and 70% dark energy, we are completely irrelevant. Why such a universe, in which we are so irrelevant, would be made for us, is beyond me."