It is possible to visualize 3 dimensional data (like a scatter plot) by projecting it on a 2 dimensional screen in a way that allows to interact with it in an intuitive way.
Is it possible to visualize 4 dimensional data (like a scatter plot) by projecting it on a virtual 3D spacein a way that allows to interact with it in an intuitive way or at least in a fashion that one can get used to?
Comments on the italic written wordings:
'virtual 3D space' means a 3D space created in your brain by suggesting a different perspective to your eyes by means of shutter goggles for example.
'in a fashion that one can get used to' is adressing the fact that the projection of a 3D space onto a 2D space uses concepts from 3 dimensional vision like perspective, blurred edges, shadows, ... such concepts are not trivially applicable when going from 3D to 4D.