Quantum Information, the Ambiguity of the Past, and the Birth ... - PiTP

Radiation from a deterministically evolving system with zero
input entropy
Discrete Classical (e.g. reversible cellular automaton):
Pseudorandom radiation, pseudorandom residual system
Continuous Classical (chaotic)
Random radiation, random residual system (both from
mining the infinite-precision generic initial condition. If
initial condition were special (computable), both residual
system and radiation would be merely pseudorandom)
Discrete Quantum:
Random residual system, random-looking radiation,
entangled with itself and with residual system