>>11623805Empty space is nothing.
If you want to get specific, the observable parts of reality that our phenomenon can categorize is made up of
>material - particles and molecules>nothingness - Empty space/the vacuum>mathematics - the wave equation and the state vector of a particel, which is objectively real and has ontological existence but is neither material/physical nor a vacuum like spaceAnd there is also the very strong argument to be made for qualia/subjectivity, which also objectively exists and is ontologically immaterial and nonphysical.
These 4 things constitute empirically observable reality and the mathematical formalism of all of it.