Perhaps it is fitting to finish with raising the issue of just how ‘direct’ is what is often
called ‘direct interaction’ when interacting with different geometries using digital
technologies. As digital technologies for geometry develop, will users feel that they are
interacting directly with geometrical theory; or will rapidly moving dynamic on-screen
images seem more like computer-generated imagery (CGI) of the form commonly
found in contemporary movies? How, we ask, can interaction with different geometries
be facilitated through different digital technologies in a way which successfully builds
the visual intuition that we need, as humans, to understand our experience of physical
and mathematical space? We look forward to further research on such issues.