The First Great Brain’s Ascendance
Last and First MenThis flow follows the First Great Brain from artificial birth to autocratic rule, spiritual frustration, and the decision to create a more complete successor.
increasing
Bearing strength in each event
decreasing
A Failed Prototype

An Experiment in Excess
Brain without balance
Early researchers produce a vast brain supported by mechanical organs, but it suffers pain and mental derangement. Its body cannot sustain the concentrated intelligence its creators demand.
Lessons from failure
The experiment demonstrates that increasing brain size alone cannot produce a stable mind. The researchers continue, seeking a design capable of supporting life as well as inquiry.
The First Successful Brain

A New Intelligence
An artificial life
The first successful Great Brain grows within a turret of carefully arranged neural tissue and machinery. It takes decades to mature but soon surpasses the specialists assigned to educate it.
Curiosity as identity
Its dominant impulse is inquiry, not affection, fear, or ordinary appetite. The contrast between its astonishing abilities and its missing human instincts defines the Fourth Men’s experiment.
Rule Through Knowledge

Autocrat of the State
A calculated ruler
The Brain becomes a political authority by offering solutions to social problems. It studies the Third Men’s behavior accurately, despite lacking the emotions that shape their values.
Service without sympathy
It seeks a healthy and efficient population chiefly because that population serves its research. The Third Men’s devotion sustains a ruler who cannot reciprocate it as personal loyalty.
An Intellectual Dead End

The Limits of Intellect
Knowledge without fulfillment
The Great Brains learn vast amounts about nature but remain unable to reach the ultimate understanding they seek. Their intellectual lives have no refuge in art, companionship, or bodily experience.
Social consequences
Frustration turns into jealousy and injustice toward the Third Men. The Brain’s supposedly dispassionate rule is exposed as vulnerable to needs it cannot acknowledge.
A Successor in View

Beyond the Brain Tower
Acknowledging limitation
The Fourth Men recognize that their defect is not simply insufficient intelligence but a narrow grasp of value. They cannot restore the ordinary capacities their design excluded.
A different experiment
They decide to create a more balanced human type, capable of experiencing the goods they can only study. The Fifth Men are conceived as successors rather than mere extensions of the Brain-Men.
During the first centuries of super-brain experiments
After centuries of further design
After the Great Brain reaches maturity
After several millennia of research
After the defeat of the Third Men