I live for stuff for finding stuff like this. It's like the day
   I thought, "Wait... what if a line (which is a fictional
   construct of our minds, as lines cannot exist in our reality),
   is really a circle viewed edge on?" From then on, every once in
   a while, I'll look, say, at the edge of my laptop screen, at the
   edge where end of the laptop meets the air and wonder, "What if
   there is a circle going off into a dimension that is invisible
   to me and I'm viewing this sideways? If every line was really an
   edge-on circle in a direction we cannot perceive, how much MORE
   of reality might there be than we can ever know?"