Dependence is more profitable than education

A customer who pays—in advance—for service contracts is a more stable income source than a customer who has fully mastered a product's use.

Customer dependence is more profitable than customer education.

What I find truly baffling are manuals—hundreds of pages long—that accompany software applications, programming languages, and operating systems. Unmistakably, they signal both a contorted design that lacks clear concepts and an intent to hook customers.

  1. ​The design concept​