@fearlessfury,
Let us examine the idea by using an ancient two element metaphysics.
A thing is defined as any material difference in any form, or shape, or boundary, if you will.
The boundary of a thing is not a thing, nor is it the material difference of a thing.
The material difference of a thing is not a thing, nor is it the boundary of a thing.
Thus every thing is composed of two, and only two elements, that things form, and the material difference in that form. Neither form nor material difference is a thing, and consequently cannot be said to exist.
Every thing then is made up of these two elements, which, in of themselves are nothing.
Do you claim that the Universe is a thing?
If you claim it is a thing, then it has a boudary which separates the material universe from another material of some other thing, i.e. another universe, ad infinitum, and you have the logic impossibility of an infinite regression.
There for, the Universe, qua Universe cannot be a thing.
But, if it is a material difference, it has no form, i.e. no end or boundary at all.