Matrioshka
Superintelligence at stellar scale
In 1999, theorist Robert Bradbury described a structure capable of harnessing the entire energy output of a star—not for power, but for thought. He called it a Matrioshka Brain, after the Russian nesting doll.
Layer upon layer of Dyson spheres, each shell capturing the waste heat of the one within, converting every photon into computation. A single stellar system transformed into a mind of incomprehensible depth.
This is what superintelligence looks like at the physical limit. Not a chip. Not a data centre. A star, repurposed.
Concentric Dyson spheres, each layer feeding on the radiated energy of the one within.
Up to 3.8 × 10²⁶ watts — a star's full luminosity — converted entirely to computation.
10⁴² operations per second. Orders of magnitude beyond any biological or silicon mind.