It is difficult to deal with these big questions, but if respected theorists work with the idea that time and an ur-space existed prior to our universe's it shows it is within the realm of possibilities. Even in the works of the "something from Nothing" genre, "Nothing" always turns out to be something and to precede the beginning. My remark on "dark matter" being absorbed is a honest mistake: I thought and meant to write "Dark Energy" I remember distinctly reading in one of the science journal sites, that the accelerated expansion of the universe, that would require added energy, is fuelled by the Dark Energy of the void that the universe expands into.
existence exited from a pre-beginning inning.