David Mill in 'Atheist Universe maintains that indeed from quantum fluctuations the present Universe came. As the quantum fluctuations follow the law of conservation of mass-energy, Existence just is.
Does anyone here have the answer to William Lane Craig's contention that this matter means that God had to have created Existence?
I find that Quinten Smith's explanation that each part of the Unnverse causes the other parts so that in that sense the Univeres is self-caused.