Well, there is this from Stephen Hawking: "The beginning of real time, would have been a singularity, at which the laws of physics would have broken down." That seems to indicate that 'before' the Big Bang, at least some of the laws of physics did not apply. That only makes sense if space and time do not exist.
The Beginning of TIme
The equations to Friedman's solution to Einstein's GToR yield infinities. They are equations, not laws. But I do find it appropriate that they yield infinity as that is the solution to the first cause.
You do realize that I already explained to you inflation theory which is what describes what happened right before Friedman's solution to Einstein's GToR yield infinities, right?
It was a quantum tunneling event which created space and time and did so while adhering to quantum laws and conservation laws. The laws were in place before space and time existed.
According to Dr. Leon Lederman, American experimental physicist and Nobel Laureate and Director Emeritus of Fermi National Accelerator Laboratory:
"In the very beginning, there was a void, a curious form of vacuum, a nothingness containing no space, no time, no matter, no light, no sound. Yet the laws of nature were in place and this curious vacuum held potential."