A Private Interpretation of Reality: Heraclitus and OCD, with a Bergsonian Twist The world of the waking [koinos kosmos] is one and shared, but the sleeping turn aside each into his private world [idios kosmos] — Heraclitus of Ephesus The pre-Socratic philosopher Heraclitus presents us with a contrast between the koinos kosmos or shared world that is accessible to those who are awake, and the idios kosmos, which is the private world of the sleeper. Heraclitus’ concern is not