Point of a sword is very real. The point of a conversation is
  successful transference of perceived intent.
  The Universe appears to be 3D and spacetime. 2D, 1D and 0D are
  concepts based upon the simplification mechanisms our brains
  developed to interpret an excess of incoming data that are puny
  little brains can't POSSIBLY take in all at once.

  So, we compress information into patterns. I could go on about
  this, one of my favorite subjects, but I'll be concise for a
  change tongue emoticon   Metaphors. A conceptual point is a
  metaphor for a dot on paper, which is a metaphor for a
  conceptual point. A conceptual line is a metaphor for a line
  drawn on paper which is a metaphor for a conceptual line.