I'm just on the edge of understanding this but if I'm visualizing this right you're talking about a point source at the center of a sphere and a bitmap indicating where all the vectors intersect the surface. But that would mean the lengths would all be the same.

Isn't it the lengths/distances to neighbors that is the main information being stored in a vector db? Or is it just that what you're talking about only concerns the angles so the lengths are not part of the discussion?

I'm a dev but still have a lot to learn about ML :)