My description goes on to say, "without the implied 'something from nothing' beginning of General Relativity (GR)". 1) My speculation is that there are three explanations for the existence of the universe, a. God did it, b. Something from nothing, and c. The universe has always existed. 2) My interpretation of the various explanations of General Relativity, Big Bang Theory, Inflation, etc. is that there is no explanation specifically given for the existence of the universe. 3) Those same descriptions mention a singularity where the mathematics of spacetime break down at the Planck regime, meaning to me that the theory backtracks to a point of space. 4) I interpret that to mean that in GR, the universe started as an infinitely dense, zero volume point of space. 5) To me that equates to a "Something from nothing" explanation for the existence of the universe. 6) My experience, education, self learning, upbringing, personal preferences, attitudes, inclinations, skepticism and simple layman status mean I just can't accept something from nothing. I'll leave that option to the professionals.