Isn't nothingness, a 'void', still a tangible concept?

If your void has a boundary then I imagine it should be very easy to comprehend. Unbound nothingness isn't that much harder a concept after you look at the bound example.

There is really no adequate way, including words, to describe true 'nothingness'. Even 'void' doesn't cut it.

Because nothing is unstable and can't exist without something. So the void has an infinite creative potential, allowing for the existence of things like God and us.

Something along the lines of "the absence of everything" comes pretty close. Nothingness is no more strange then somethingness. If you can't even give an approximation to nothingness I don't think you understand it well enough to make any claims about "true" or "absolute" nothingness.

It's not hard to imagine other universes where uncertainty or other "laws" don't apply. Basically a steady state empty universe with no forces.

Buddhism = negative immortality ,where one merges with the absolute "Brahmajyoti" in a deep sleep if you like.

Or one can progress to exist within a positive immortality where a positive and progressive activities take place on a "loka" a planet which is not within "material creation" beyond time and space.

You are now within the material world , a place where one has desire's and enjoys the fruits of material life , but are subject to Birth Old age and Death