• Vary, a lot! What stays the same (invariant)?
• How does object A change under operations? (Not: What is object A?)
• Compress.
• Don’t build static information but generators.
• Example invariants: energy, information, ownership, balance, order, constraints, symmetries, non-brokenness.
• Ask why instead of how.

Some overlap.

Motivational helpers:

• Everything is getting simpler then, less effort, less errors, less frustration.
• More speed, more at once.
• More control.
• Magical superpower, tricks.