It's a work of pure madness! Basically, it deals with voltage as functions to define a point in Cartesian space...x, y, and z. But instead of a singular point being defined, it moves around as something of a 'blob' of CV so that it fades in and out of the various geometric points it has defined. And on top of that, it alters/processes the incoming CVs to make up the 'blob', so the identity state of that hunk of CV has the ability to be in constant flux, if desired. About the only other thing that purely deals with CV as mathematical operators like that that comes to mind offhand is Ladik's Joystick Math...but it deals solely with x and y functions, whereas the Vector Space not only treats the incoming voltages through that extra z dimension, but also with crossmodding. Very powerful...for generative work, I'd rank it as a prime choice for keeping modulation sources/paths in continuous flux.