However, the idea that "'nothing' is impossible" still doesn't make sense to me. If the reality allows for infinite possibilities then one of the possibilities must be of 'nothingness'. This is what Buddhists argue, that reality is śūnya or 0/null/void, and that we exist only momentarily in this nothingness somehow but you can see how that argument is flawed too.
Then comes sāṁkhya that says there are 2 entities: The observer and the thing which is being observed. The observer (individual consciousness or puruṣa) is eternal, has no point of origin and no end. Similarly, prakṛti or nature also exists at the same time because the observer needs an observation but prakṛti's nature is to change all the time, it manifests and unmanifests (just like our bodies or everything else in this universe made of dead matter). However, even though prakṛti keeps this constant of change, the observer or puruṣa himself is unchanging (just like how our bodies and every single cell in it keep changing but the sense of 'I' remains the same somehow). On top of that, it says the prakṛti and puruṣa are mutually exclusive. They do not mix like oil and water but remain in contact at the same time, just like how we have material bodies that keep changing but the 'I' or the observer inside it is not made of prakṛti and hence remains detached from it. It is only the false-ego (or false-'I') of puruṣa that forces it to identify itself with prakṛti (like I'm a male, I have this job, this is my family, I have this body and face, etc.).
The universe is based on Murphy's 1st Law: Anything can go wrong, including nothing.
"In the beginning there was nothing… Then something went wrong."
If something's not emitting any information (black hole insides), it exists only in one's imagination.
Also, there's been some interesting progress regarding information about the inside of the black hole possibly leaking out in the Hawking radiation.
"It's all in your head" might be one answer but that's the question, what plane or dimension is it? and why do we not see it anywhere externally?
http://www.av8n.com/physics/black-box.htm#sec-plane-of-exist...
(Which made me realize how little I know about eastern mysticism...)
This question could be applied to a number of things historically, and may even be in effect going forward.
Simply that our local version of spacetime expanded in the great inflation.
And I'm not sure if you've been following the news on it, but there's some serious issues with the theory at the moment.
https://en.wikipedia.org/wiki/Eternal_inflation
People don't spend much time on those theories because they are inherently of little practical consequence. What includes that they are also not clearly testable.
So in the end, everybody's theory holds 'almost' the same weight. We're all clueless, yay!
It's what's so annoying with people arguing about "something from nothing."
Even a vacuum has zero point energy. The idea that there could even be 'nothing' at any point in time is arguably a bigger leap of faith than the notion of some deity for whose sake it is being argued as a presupposition.