Under the prevailing conditions of increasing specialization, each specialist overrates his own insight. This is accompanied by a tendency to grant to others, especially other specialists, unwarranted levels of authority in their own areas of expertise. Specialists must make it a habit to accept without question the opinions of other specialists and to depend upon them. People are increasingly obliged to make use of equipment whose functioning they do not fully understand. As a consequence individuals are obliged to abstain from insight. The more complex the equipment, the more the manufacturer must endeavour to avoid the need for any attempt by the user to make use of insight. Automation obviates the use of insight.