Every now and then I find myself testing whether my life could (have) be(en) better by having chosen another temporal path. What this usually means is "if I had known better then, could I have improved my present status?" Is this wish reserved to the human condition, or is it a viable option in the physics in the universe overall? I have yet to recognize a juncture where time itself gives me a choice of paths by which to go. Perhaps this is the ignorance we face in judging our cosmos: to turn back time is moot because, even if we did, we observers would never be able to distinguish between our possible futures in hindsight.