Rethinking book focus

[rwxrob]

• Target audience: >13yo, hackers, sysadmins, operators, and sres
• Move to "hard way" approach: stated what is needed to be learned, not how
• Drop most thematic elements except hacker's perspective
• Encourage reader to create their own mnemonic devices
• Focus on motivating reader to write their own "text book"
• Avoid specific steps, show how to search and find own resources