For all of its "Matrix"-like convolutions and "Alice in Wonderland" allusions, the new film "Inception" adds something significant to the ancient ruminations about reality's authenticity -- something profoundly relevant to this epoch of confusion. In the movie's tale of corporate espionage, we are asked to ponder this moment's most disturbing epistemological questions: Namely, how are ideas deposited in people's minds, and how incurable are those ideas when they are wrong?