Luxury beliefs have, to a large extent, replaced luxury goods.

Luxury beliefs are ideas and opinions that confer status on the upper class, while often inflicting costs on the lower classes.

Ken describes how he injected a virus into a compiler. Not only did his compiler know it was compiling the login function and inject a backdoor, but it also knew when it was compiling itself and injected the backdoor generator into the compiler it was creating. The source code for the compiler thereafter contains no evidence of either virus.