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A batch of the best highlights from what Siddish's read, .
The 5 Domains of Expertise:
**Tactics:**
*specific actions and techniques used to achieve success*
- PM: How did Pinterest do SEO?
- Eng: DSLs, CRDTs, serverless, Causal Ishikawa diagrams
**Processes:**
*methodologies and procedures followed to streamline and ensure smooth execution*
- PM: How are projects done at Amazon?
- Eng: Agile, TDD, Pair programming, Design of Experiments
**Frameworks:**
*structured models to analyze and solve complex problems systemically and effectively*
- PM: How should I segment customers? How to find core customer needs?
- Eng: Blameless RCA, Feedback loops, Database selection
**Principles:**
*fundamental beliefs and guidelines that inform decision-making*
- PM: Which features should get more prominence? Hierarchy of user needs
- Eng: Inherently ephemeral service, Security: Everyone's responsibility, System Design
**Mindset:**
*mental attitudes and psychological aspects to help you navigate the challenges*
- PM: How to manage your own thinking & psychology?
- Eng: Inquisitive/Curious to study black boxes, Experimentation

Categorizing types of beliefs: Valuable Truths, Bitter Pills, Philosophical Disorders and Helpful Falsehoods
Spencer Greenberg
"We would never again endure a period where we went weeks without visible evidence of progress."
...catch up on these, and many more highlights