text: A very deep question. Science is a method for trying to probe reality, and at least come up with some models of reality so we can maybe make some predictions. \n\nThe simplest answer is, no one really knows. But it is also probably true that it is probably different than we know, and as J. B. S. Haldane says (paraphrased slightly) "the universe is not only stranger than we know, but stranger than we CAN know".