Learn the four technical pillars every component must address.
You wouldn't build a house without knowing about plumbing, electricity, foundation, and roofing, right?
Similarly, every system component needs these four technical details figured out:
🗄️ &
📈 Scaling & Fault Tolerance
⚡ Asynchronous Processing
🔄 Communication
Example: Web Server might use HTTP for communication, Redis for caching, but no async processing needed.
Key Insight: "Technical details separate thoughtful design from random box-drawing."
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