In effect, practice is about harnessing the benefits of learning from failure while reducing its cost. It is better to fail in practice in preparation for the big stage than on the big stage itself. This is true of organisations, too, which conduct pilot schemes (and in the case of aviation and other safety critical industries test ideas in simulators) in order to learn, before rolling out new ideas or procedures. The more we can fail in practice, the more we can learn, enabling us to succeed when it really matters.
