  The contributions of this paper are: (1) a taxonomy of the "Realities"
(Virtual, Augmented, Mixed, Mediated, etc.), and (2) some new kinds of
"reality" that come from nature itself, i.e. that expand our notion beyond
synthetic realities to include also phenomenological realities.
  VR (Virtual Reality) replaces the real world with a simulated experience
(virtual world). AR (Augmented Reality) allows a virtual world to be
experienced while also experiencing the real world at the same time. Mixed
Reality provides blends that interpolate between real and virtual worlds in
various proportions, along a "Virtuality" axis, and extrapolate to an "X-axis".
Mediated Reality goes a step further by mixing/blending and also modifying
reality. This modifying of reality introduces a second axis. Mediated Reality
is useful as a seeing aid (e.g. modifying reality to make it easier to
understand), and for psychology experiments like Stratton's 1896 upside-down
eyeglasses experiment.
  We propose Multimediated Reality as a multidimensional multisensory mediated
reality that includes not just interactive multimedia-based reality for our
five senses, but also includes additional senses (like sensory sonar, sensory
radar, etc.), as well as our human actions/actuators. These extra senses are
mapped to our human senses using synthetic synesthesia. This allows us to
directly experience real (but otherwise invisible) phenomena, such as wave
propagation and wave interference patterns, so that we can see radio waves and
sound waves and how they interact with objects and each other. Multimediated
reality is multidimensional, multimodal, multisensory, and multiscale. It is
also multidisciplinary, in that we must consider not just the user, but also
how the technology affects others, e.g. how its physical appearance affects
social situations.
