The in modifier causes the object to be passed to one of the current membrane’s children (travelling inwards relative to the structure of the P system), chosen at random during the computation.
# It passes numerous tests for statistical randomness, including the Diehard tests.
The inherent randomness of algorithms such as Hyper-encryption, Bayesian networks, Random neural networks and Probabilistic Cellular Automata was harnessed by Krishna Palem et al. to design highly efficient hardware systems using Probabilistic CMOS or PCMOS technology that were shown to achieve gains that are as high as a multiplicative factor of 560 when compared to a competing energy-efficient CMOS based realizations.
No multiplayer modes are available, but because the game-play is based on randomness inside certain patterns, it inspired an off-line Internet campaign Pacific Thunder.
Randomness (initially inspired by the Surrealist psychic Automatism) plays an important role in his unstructured compositions.