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

[Alex K]

I like much of the thought in this post, but have a couple comments.

A backward flowing waterfall would violate the law of gravity, so saying no laws of physics are violated is a bit of a stretch.

You're wrong here. It does not violate gravity just as a ball flying upwards when you throwing it up does not violate gravity. It is merely unlikely that the thermal vibrations in the creek conspire to push a drop of water upwards with enough force for it to make the trip.

The last sentence leaves me a bit flat; I'm not sure what you're after.
Questions only resemble questions, but only mimic them. I don't understand what this means. It also sounds a little self indulgent.

"What is behind the sound of the color pink?"

It looks like a question, but it isn't

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.

But now you're effectively saying: possibly our concept of time does not break down

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.