"One reads Stephen Hawking's Brief History of Time, perhaps a sign of things to come, and the affinities with Kabbalah are striking."[1] Kenneth Hanson sees similarity in the Kabbalistic idea that Hebrew letters were the material of which the Universe was built and Stephen Hawking's explanation why Albert Einstein's Theory of relativity will break down at some point that he called the "singularity". Hanson says that although Hebrew letters have shapes they are actually made out of nothing, as well as the singularity of the Big Bang. Hanson also argues that the singularity of Black holes could be compared to Kabbalistic "spheres of nothing", as it was written in an early Kabbalistic text Sefer Yetzirah: "For that which is light is not-darkness, and that which is darkness is not-light."[2]