Lesson 1 — What Is This All About?

Understanding the Complex: How Do Chips Actually Work?

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In the spring of 2021, a Ford executive stood before a wall of spreadsheets showing something that hadn't happened since the Second World War: the company would have to cut production of its best-selling F-150 pickup truck by hundreds of thousands of units. Not because of steel shortages. Not because of labor disputes. Because of chips — tiny slivers of silicon, each the size of a fingernail, costing less than a dollar each, but without which a modern truck simply cannot be built.

Ford cut 1.1 million vehicles that year. Volkswagen shuttered plants in Germany. Toyota, GM, and Honda followed. The global auto industry lost an estimated $210 billion in revenue — all because a supply chain that had been quietly humming in the background suddenly showed its face.

The irony was sharp: the most powerful machines in the world, billion-dollar factories capable of producing a vehicle every few minutes, had been brought to their knees by components so small you could lose them in a shirt pocket.

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That crisis was a glimpse behind a curtain most people don't know exists.

We live surrounded by chips. The smartphone in your pocket contains several. So does your car, your refrigerator, your credit card, your pacemaker, and the traffic lights on your street. The aircraft flying overhead carries hundreds of thousands of them. The data centers that run the internet are stuffed with billions. Every time you ask an AI assistant a question, a chip — or rather, tens of thousands of chips working in concert — is doing the work.

And yet almost nobody knows what a chip actually is, how it's made, or where it comes from.

This course sets out to fix that.

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The central question we'll pursue across eleven lessons is this: How does sand become the most complex manufactured object in human history — and why does the world depend on a single factory in Taiwan to make it?

That question has two parts. The first is purely physical: how do you turn a grain of silicon dioxide into a semiconductor that can perform a billion operations per second? The second is geopolitical: how did it come to pass that this astonishing manufacturing capability is concentrated in the hands of a single company, in a single country, in one of the most geopolitically contested regions on Earth?

Both questions matter. Both have surprising answers.

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Here is a preview of what we'll cover.

Chips are made from silicon — one of the most abundant elements on Earth — but making useful silicon requires a purity so extreme that impurities must be held to less than one atom per trillion. The manufacturing process involves over a hundred sequential steps, any one of which, if botched, ruins the entire wafer. The machines that perform the most critical step — printing the circuit patterns onto the silicon — are built by a single Dutch company called ASML, each costing roughly the same as a commercial passenger jet, and nobody else in the world knows how to make them.

The company that operates the most advanced version of this process is TSMC, Taiwan Semiconductor Manufacturing Company. Founded in 1987 by a man named Morris Chang, TSMC produces around 90 percent of the world's most advanced chips. Apple's processors, Nvidia's AI accelerators, AMD's CPUs — all of them are made in fabs on the outskirts of Hsinchu, a city of half a million people on Taiwan's western coast.

This concentration of capability is, as strategists are increasingly pointing out, without precedent in modern industry. Nothing equally critical to modern civilization is so narrowly produced.

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By the end of this course, you will understand:

• What a transistor is and why it is the fundamental building block of all modern electronics
• How photolithography "prints" circuits onto silicon at scales smaller than a virus
• Why EUV — extreme ultraviolet light — was a 20-year, multi-billion-dollar bet that changed everything
• How TSMC came to dominate the industry, and what that means geographically and politically
• What the US-China chip war is actually about, beyond the headlines
• What comes after silicon, and whether Moore's Law is truly dead

We will not tell you which chip stocks to buy. We will not predict who "wins" the geopolitical contest — that involves value judgments about sovereignty, trade, and security that reasonable people hold differently. What we will do is give you the tools to understand why this topic appears on front pages, in boardrooms, and in national security briefings around the world.

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Next lesson: Why Should You Care? — Three concrete reasons why chips are central to your life, the global economy, and the next era of technological competition.

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Reading time: approx. 8–9 minutes