https://www.sciencedaily.com/releases/2020/06/200629120227.htm > University of Queensland researchers have successfully verified a counterintuitive idea from quantum theory -- that ignorance of the whole does not necessarily imply ignorance of the parts -- in the lab. > UQ physicist Dr Jacqui Romero from the ARC Centre of Excellence for Engineered Quantum Systems (EQUS) said the team's findings would be important when evaluating security in quantum encryption.