Yes and No.<p>It reminds me of the old joke about the Irish man who was asked to put his head out of the car's side window and see whether the car's turn indicator was working or not.<p>"Begorrah, Yes it is! Oh, no it's not. Oh, yes it is.! Oh, no it's not! ...."<p>Over several human lifetimes, we could safely say the negligible difference isn't worth worrying about.