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Mental Models

The thinking layer under every system you will ever touch.

The universal models that appear in every corner of computing: queues, caches, state machines, trust boundaries. Each one taught with its real math on an interactive chart, then proven hands-on in more than one subsystem, so what you learn in one domain shows up for you in the next. This track makes every other track land faster.

Modules

• How Experts Actually Think - Before the models: what expertise physically is. Why experience alone plateaus, why skills refuse to transfer between domains, and the one e
• Everything is a Queue - The most universal model in systems. Every latency spike you have ever debugged had a queue behind it: CPU run queues, socket backlogs, disk
• The Latency Hierarchy - Nine orders of magnitude separate a memory read from a cross-continent packet, and every performance decision you will ever make lives somew
• Caching and Invalidation - Keep a copy of recent answers closer and most work disappears, but every cached answer might be a lie. The hit-ratio math (why 99 percent is
• State Machines - Systems do not drift, they jump between named states along drawn edges. Read live TCP socket states with ss (including the famous forgotten-