The arrows are what limits are all about. You need to learn to draw your own arrows (or just move your eyes, or your finger, over a graph to think about how the function behaves. Although modern definitions are all about epsilons and deltas and proofs, the original ideas of calculus are about motion, and it's important to be able to imagine that motion.Ok...After looking at your arrows I was able to see it more clearly. I just see dots so its not as clear to me as it is to you guys...