The absence of something... anything... Not even darkness... Humans can envision something, but paradoxically, they can't imagine what nothing is. Closely linked to nihilism. And this leads to fears of death.
The following is an illustrated (or not) example of nothingness. Though unfortunately, it is not the "real" (or fake?) nothingness as it is in the screen color of your Dominiguru color theme.
Thank you for scrolling.