Picture trapeze artists performing a death-defying act. We are amazed and maybe a bit scared for them. But then we notice there is a net below them. They will be caught by the net if something goes awry. Knowing there’s a safety net frees them to try even more daring tricks. Without the net, their act would likely be more conservative. It would be less fun for them, and for the audience. In fact, falling may not even cross their minds – because they know the safety net will always catch them.