A thread · 12 steps · 2,620 years
From a rubbed piece of amber to a machine that talks — 2,600 years in 12 steps.
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~600 BC
The word "electricity" is just Greek for "amber-stuff" (ēlektron) — the entire electrical age is named after a fossilized tree resin that Thales rubbed with fur 2,600 years ago.
The observation that rubbed amber attracts light objects — the first recorded encounter with electric charge.
For 2,000 years, this is ALL humanity knew about electricity: amber, rubbed with fur, picks up chaff.
made it thinkable ↓ Leyden Jar
1 / 12 · 600 BC
1745 AD
To measure how fast electricity travels, the French abbé Nollet discharged a Leyden jar through a chain of 200 monks holding hands — a mile of clergy who all jumped at what appeared to be exactly the same instant.
A glass jar coated with metal foil inside and out — the first device that could store electric charge and release it on command.
The first time electricity could be bottled — and studied instead of just witnessed.
made it thinkable ↓ The Battery (Voltaic Pile)
2 / 12 · 1745 AD
1800 AD
Volta built it to win an argument: Galvani claimed twitching frog legs proved animals contain "animal electricity," and Volta proved the frog was irrelevant. Within weeks of his announcement, other scientists had already used the pile to split water into hydrogen and oxygen.
A stack of alternating zinc and copper discs separated by brine-soaked cloth — the first source of continuous electric current in history.
The spark becomes a flow. Everything before this was a snap; everything after is a current.
made it makeable ↓ Electromagnetism
3 / 12 · 1800 AD
1820 AD
Ørsted made the discovery in the middle of a university lecture: a compass needle on his demonstration bench twitched when he closed a battery circuit, in front of his students.
The discovery that electric current creates magnetism — electricity and magnetism are one phenomenon.
A compass twitches next to a wire, and two sciences collapse into one.
made it thinkable ↓ Electric Generator
4 / 12 · 1820 AD
1831 AD
A generator and a motor are the same machine run in opposite directions: spin it and electricity comes out; feed it electricity and it spins.
Faraday's discovery that moving a magnet past a wire induces current — mechanical motion converted directly into electricity.
Now anything that spins makes electricity. The grid becomes inevitable.
made it makeable ↓ Vacuum Tube (Triode)
5 / 12 · 1831 AD
1906 AD
The vacuum tube is a direct descendant of the light bulb — Edison noticed a ghostly one-way current inside his lamps in 1883, filed it as a curiosity, and moved on. That curiosity became all of electronics.
A light bulb's evil twin: electrons boiled off a hot filament in a vacuum, steered by a metal grid — the first electronic amplifier and switch.
Electricity learns to control itself — the first electronic switch.
made it thinkable ↓ The Transistor (Point-Contact)
6 / 12 · 1906 AD
1947 AD
The device that now exists in the trillions was first assembled by hand from a plastic triangle, a strip of gold foil slit with a razor blade, and a bent spring pressing it onto a slab of germanium.
The first solid-state amplifier: a sliver of germanium with two gold contacts, able to do a vacuum tube's job with no vacuum, no heat, and almost no power.
The switch goes solid-state: no vacuum, no heat, no size limit.
made it makeable ↓ Integrated Circuit
7 / 12 · 1947 AD
1959 AD
The insight was accepting worse parts: a silicon resistor is inferior to a real one, but if everything is silicon, the whole circuit can be printed at once — and printing scales in a way hand-wiring never can.
An entire circuit — transistors, resistors, wiring — manufactured as one piece on a single sliver of silicon.
Circuits stop being wired and start being printed.
made it makeable ↓ Microprocessor
8 / 12 · 1959 AD
1971 AD
The first microprocessor (Intel 4004) wasn't built to power computers — it was a cost-cutting shortcut for a Japanese desk calculator. Intel bought the rights back for $60,000.
A complete computer processor on a single chip.
A whole computer on a chip — built, absurdly, for a desk calculator.
made it makeable ↓ The Internet
9 / 12 · 1971 AD
1969–1983 AD
The first message ever sent on the ARPANET (1969) was supposed to be "LOGIN" — the system crashed after two letters. The internet's first word was "LO".
A network of networks with no center: any computer can reach any other by passing packets through whoever is in between.
Every computer connected — and humanity starts writing everything down in one place.
made it makeable ↓ Deep Learning
10 / 12 · 1983 AD
2012 AD
The 2012 breakthrough (AlexNet) was trained on two consumer gaming graphics cards in a bedroom-scale setup — hardware built to render video games turned out to be the perfect brain-training machine.
Many-layered neural networks that learn features from raw data instead of being told what to look for — revived when GPUs made training them feasible.
Gaming graphics cards turn out to be brain-training machines.
made it thinkable ↓ Large Language Models
11 / 12 · 2012 AD
2018–2022 AD
An LLM's entire education is a single game: guess the next word. Nobody programmed translation, arithmetic, or coding into them — those abilities emerged, uninvited, once the models and their training data got big enough.
Neural networks trained on internet-scale text to predict the next word — and which, at sufficient scale, turn out to translate, code, reason, and converse without being taught any of those skills directly.
Trained on one game — guess the next word — until it could talk back.
12 / 12 · 2020 AD
12 nodes of civilization, each impossible without the one before it.