I stretch out my uninflated clear 17 inch yellow balloon. I'm going to inflate it until it grows as big as it can possibly get, and it pops. Do you want to watch me? I tease you as the balloon grows larger. I switch between quick short breaths, and longer breaths. Which one do you think it will pop on? A short quick one, or a long one? Asking you occasionally if you want me to stop blowing. Once the balloon is close to the maximum size, I ask you to guess how many more breaths you think the balloon can take. My guess is 10, what will you guess? Will one of us guess correctly?