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How a CPU Works: The Engine Underneath Every Program

Apr 11 · 6 min read · Every line of code you have ever written eventually becomes a sequence of instructions a piece of silicon executes one at a time, billions of times per second, and most engineers have no idea what tha

Binary and Number Systems: Why Computers Think in 0s and 1s

Apr 8 · 5 min read · Every number you have ever typed into a computer was silently converted into something unrecognizable before anything happened with it. The Switch That Started Everything Picture a row of eight light

Mental Models for Engineers: How Experienced Developers Actually Think

Apr 6 · 7 min read · Every senior engineer you admire is not smarter than you. They just carry a set of lenses they reach for automatically, and nobody told you the lenses existed. That gap, between the engineer who stare

Complexity Thinking: Why Some Problems Are Harder Than They Look

Apr 4 · 8 min read · Some problems cannot be solved faster no matter how clever you are. That is not a reflection on your skill. It is a property of the problem. Knowing which problems fall into that category is one of th

Functions as Transformations: Think Like a Mathematician and a Programmer

Apr 1 · 6 min read · Every function you have ever written is a lie. Or at least, that is what a mathematician would say if they looked at most production code. In mathematics, a function has a strict definition: a relatio