nothing, nothing, nothing...big bang?

[Anomalocaris]

Not quite right. There is something, and that something is everywhere. It's called quantum fluctuations.

To my knowledge you still need something for a quantum fluctuation to occur?
If you had absolutely nothing, you would still have absolutely nothing?

No need to get caught up in the pedantic. If quantum fluncturation came from nothing, then there is no god. If it came from something, we will find out what something is, and so on and so on. And those who cling to god either beats a sorry perpetual retreat, always fleeing with the receding unknown, grasping for the final refuge that science can't find out everything in a finite amount of time; or be reduced to each age's equivalent of flat earthers, denying based on stone age myth what has been verified by centuries of science.