|background photo credit: NASA Goddard Photo and Video cc|
When people claim the big bang originated from nothingness, we can now tell them that nothingness has never existed. Our universe is no longer made from just particles and light. The space in between particles and light has properties itself, which definitely points to a creator. Only something with properties could have created this universe, and that something must have been created as well... unless there is a God who stands outside of time, causation and even existence itself who created it all.
One thing is for sure. If someone talks about the Big Bang, you can now claim that something cannot come out of nothing because nothing never technically has existed.