You just don't have room for it in your category schema.

   Does a coin land heads or tails?
   No. Sometimes it lands on its side.

   In a computer, is it always "flip/flop" (0 or 1)?

   No. There's a reality called race conditions. Sometimes it's in
   the middle.

   Sometimes it's both. I live on this planet, not the land of
   fictional thought experiments.