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Hi, Bot

› Hi, Bot Builder · Sand to Agents

From sand to agents, in 30 models.

Every AI answer rests on a stack of real machines. Walk the line from the energy that powers it to a machine that learns, and build each one for real. New to the ideas underneath? Start with AI Foundations.

Print the lineup (1 page) →

Start with these five

Switch → logic → parallel compute → cluster → learning. Those five cover the whole path from one switch to a machine that learns; the other 25 fill in around them.

The line

Brick build coming means the step-by-step brick booklet for that model isn't out yet; booklets arrive one model at a time, starting with the Starter Five. New booklets are announced by email once they open to everyone: get the free printables list.

01

Power

Where the energy comes from

  1. #1Steam engineHeat becomes motionOver $100 · One sessionReal thing · BuyBrick build coming
  2. #2Combustion engineFuel becomes work$25–$100 · A few sessionsReal thing · BuyBrick build coming
  3. #3Electric motor / generatorMotion and electricity, one deviceUnder $25 · One sessionReal thing · DIYBrick build coming
  4. #4Coal power plantMuch power still comes from burning fuelUnder $25 · A few sessionsReal thing · DioramaBrick build coming
  5. #5Hydroelectric damFalling water becomes electricityUnder $25 · A few sessionsReal thing · DIYBrick build coming
  6. #6Wind turbineRenewable power and blade design$25–$100 · One sessionReal thing · BuyBrick build coming
  7. #7Solar cellLight becomes current, in siliconUnder $25 · One sessionReal thing · BuyBrick build coming
  8. #8Nuclear reactorTech firms have signed nuclear power dealsUnder $25 · A few sessionsReal thing · 3D printBrick build coming
  9. #9Lithium-ion batteryStoring energy for every deviceUnder $25 · One sessionReal thing · 3D printBrick build coming
  10. #10Power gridHow power reaches the data centerUnder $25 · A few sessionsReal thing · DioramaBrick build coming
02

Foundations

How machines came to think

  1. #11Jacquard loom / BabbageHoles in cards told machines what to doUnder $25 · One sessionReal thing · BuyBrick build coming
  2. #12Turing machineWhat computation meansUnder $25 · A few sessionsReal thing · DIYBrick build coming
  3. #13Vacuum tubeThe switch before the transistorUnder $25 · One sessionReal thing · BuyBrick build coming
  4. #14StarterTransistorThe switch everything is built fromUnder $25 · One sessionReal thing · Buy + DIYBricks ready
  5. #15StarterLogic gatesSwitches combined into decisions$25–$100 · A few sessionsReal thing · BuyBricks ready
  6. #16Sand to waferThe literal “From Sand”Under $25 · One sessionReal thing · BuyBrick build coming
  7. #17Chip fab / EUV machineOne of the hardest machines to buildUnder $25 · Multi-week projectReal thing · DioramaBrick build coming
03

The Machine

Inside a computer

  1. #18CPUThe general-purpose brainUnder $25 · One sessionReal thing · Buy + DIYBrick build coming
  2. #19MemoryHow a bit is storedOver $100 · A few sessionsReal thing · BuyBrick build coming
  3. #20Hard driveSpinning platters versus flashUnder $25 · One sessionReal thing · TeardownBrick build coming
  4. #21MotherboardHow the parts talk to each otherUnder $25 · One sessionReal thing · TeardownBrick build coming
  5. #22StarterGraphics card / GPUThe chip that made modern AI possible$25–$100 · One sessionReal thing · TeardownBricks ready
  6. #23Desktop computerAll the parts working togetherOver $100 · Multi-week projectReal thing · DIYBrick build coming
  7. #24Keyboard + mouseHuman input becomes signals$25–$100 · A few sessionsReal thing · Buy + DIYBrick build coming
  8. #25Monitor / pixelNumbers become picturesUnder $25 · A few sessionsReal thing · DIYBrick build coming
04

Scale

Where AI actually runs

  1. #26StarterServer rackA real, working cluster you can touchOver $100 · Multi-week projectReal thing · BuyBricks ready
  2. #27Data centerWhere a chatbot’s answer is madeUnder $25 · A few sessionsReal thing · DioramaBrick build coming
  3. #28Undersea fiber cableHow the answer can cross an oceanUnder $25 · One sessionReal thing · BuyBrick build coming
05

AI

The payoff

  1. #29StarterNeural networkA machine you can train by handUnder $25 · A few sessionsReal thing · DIYBricks ready
  2. #30Robot armAI acting in the physical world$25–$100 · A few sessionsReal thing · BuyBrick build coming

After #30: the ideas the line was building toward

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