Computronium is the arrangement of physical resources optimized for its use as a computing substrate.

Further reading

Bostrom, Nick (2014) Superintelligence: Paths, Dangers, Strategies, Oxford: Oxford University Press.

Bremermann, Hans J. (1967) Quantum noise and information, Proceedings of the Fifth Berkeley Symposium on Mathematical Statistics and Probability, vol. 4, pp. 15–20.
An attempt to estimate the upper limits of computation.

Lloyd, Seth (2000) Ultimate physical limits to computation, Nature, vol. 406, pp. 1047–1054.

Sandberg, Anders (2018) Answer to 'Computronium and time dilation and Bremermann’s limit', Stack Exchange, May 23.

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hedonium | universe's resources