Yesterday I announced at the National Assembly @ Hiroshima of the
Science Education Research Council. The story of the 3D printer came
up with me, but the v-t diagram and #HoloLens were not good. It was a
bit painful that the room was bright and there was no blackout. The
strength of # HoloLens which can indeed see in three dimensions is not
used as a rape previewer. It is a future task.