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

## Bibliography

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.