[Bloody Sam Roberts]

how did something explode from nothing?

That's an easy one;

"And God said, "Let there be light!"

[Ichneumon]

[how did something explode from nothing?]

That's an easy one; "And God said, "Let there be light!"

Not so easy, actually, that doesn't answer the question. He asked "how". Your question fails to address that (i.e., how would saying "let there be light" actually work to get the job done, if indeed that even happened?)

If you asked me how a car is made out of iron ore and other raw materials, would you consider "people place orders for them at their car dealership and eventually there's a car" to be an adequate response?

[Tiny]

"And God said, "Let there be light!"

Actually he said "Hey Gabriel! Watch this...ooops"