The following is not a question: Can something come from nothing?

[LostLocke]

Despite the fact that our concept of time and causality breaks down at the Big Bang, asking what happened before is a meaningful question. To arbitrarily claim there was no before because we can't see past what we call t=0 does not mean there isn't a t<0. I agree that it would likely be something very different than what we know; however our inability to understand this doesn't mean there is no before. I think it is important to consider, but we may never know. The questioning and pondering may ultimately be fruitless, but I can't support describing the question as meaningless.

I'm thinking that most of those in the science field that are positing that 'before' doesn't work for the big bang, aren't necessarily saying that there is 'no' time before the big bang, just that, like you said, it very likely does not function the same way we understand it here.
From our tiny blip on the radar lifespan, time starts at point A travels in a straight linear line to point B. That's all we really need to know to function in life. However, for those of us paying attention, we know it's been shown that time is a lot more flexible and variable than that. We've already demonstrated that time travels at a different rate in orbit that it does on the ground.

I think all they're trying to do is get our minds set that our normal concept of time won't work when we're dealing with 'before' the big bang. We don't know, but it is a real possibility that there was no time before. Or, another fun one to throw at people and watch their faces, is that something did in fact cause the big bang, but that something hasn't happened yet.