Well, once the "Did it Happen?" is answered, THEN there is the
   matter of "Intent".

   How can we measure Intent?
   *Brain reading is currently impossible.* and historical brain
   reading even more so.

   Justification is built-in to our neural systems.

   We witness something. 400 ms later, if something is unexpected
   (a new blob on the screen forming a new word we notice), we
   begin processing it and start forming a story to justify what we
   had just experienced.

   We continually anticipate the future while writing stories about
   the just-recent past, mostly utilizing our FURTHER past
   knowledge to express the "just happened" past, which we consider
   "NOW".

   God that sounded like a line of babble I just wrote. I need to
   edit better.