The nothingness is possible??

The nothingness is absolutly possible because to be a nothing in someplace or in someway, it mean that there was something else in that place, or there will be something there because is an empty place (like the mind, or like a place) that can be occuped.
Also if you start to discard everything in the world to prove that something is that and not another one, the nothingness will be the thing that make the thing itself.