出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/04/25 09:00 UTC 版)
A Boltzmann brain is a hypothesized self-aware entity which arises due to random fluctuations out of a state of chaos. The idea is named for the physicist Ludwig Boltzmann (1844–1906), who advanced an idea that the known universe arose as a random fluctuation, similar to a process through which Boltzmann brains might arise.