The 4th dimension is in fact 1 trimension + 1 dimensnion. in effect it is an attempt to expand a situation into another trimension but falls back into the trimensional logic of the situational forcefield of what it is trying to overcome. Hence fascists try and go beyond left and right but collapse into the logic of the right.

Duchamp is to be appreciated for breaking with 4th dimensionalism and going for n-dimensionalism (green book) following the math of Poincare (analysis-situ) as Jorn did.

all institutions must be overtaken by the proletariat. this includes art galleries and restaurants as well as public toilets...