Causality A cause leads to an effect. That idea has worked for me for most of my life. It helps me reflect of the ways we impact one another and our environment and see how everything is related. I am open to the idea that an effect can precede a cause, however I cannot fully grasp what that would mean. I think that idea can work if you can break away from the arrow of time. I am not there yet. The Uncertainty Principle I think the uncertainly principle is wise and simply acknowledges the limitations of measurement. The uncertainly principle states that since you cannot measure momentum and position at the same time, you cannot know with certainty. Since you cannot be certain of both of these characteristics of a subatomic particle, you cannot predict its path. This all makes sense to me. I am getting lost when we try to extrapolate this to a larger scale, especially since this principle was proposed for only quantum particles. I do like the philosophical e...