Physicists Debate Hawking’s Idea That the Universe Had No Beginning
Cosmology is deeply disturbing if you think about it too long. <i>Why</i> should the universe exist? What is a causeless cause? How can something come from nothing? Regardless of the precise mechanisms involved, at <i>some</i> scale, some kind of steady-state cyclic model seems unavoidable --- the whole idea of existence not existing is bizarre and puzzling. The only way out of the causeless effect problem is to nop out of the effect.