Let’s imagine an ordinary employee, Smith, a member of the marketing team of a fictional company whose name, Tools Ltd, echoes the theme of this book. On a Monday morning after a pleasant weekend Smith goes into the entrance hall of a multi-company building in a business district on the outskirts of a large city. It is 09.10 when he presents his smart card at the doorway. In doing this he encounters a technical arrangement that does not give him any more pause for thought than the turnstile on the underground, his usual mode of transport. The door opens obligingly for him, but of course if it hadn’t done so Smith would have had an anxious moment. Then again, the security guard would have come and put things right. It would have been just one of those little vexations of modern life.