Quantum mind with a cat in a locked steel chamber, wherein the cat's life or death depended on the state of a radioactive atom, whether it had decayed and emitted radiation or not. According to Schrödinger, the Copenhagen interpretation implies that "the cat remains both alive and dead" until the state has been observed. Schrödinger did not wish to promote the idea of dead-and-alive cats as a serious possibility; on the contrary, he intended the example to illustrate the absurdity of the existing view of quantum mechanics. However, since Schrödinger's time, other interpretations of the mathematics of quantum mechanics have been advanced
Dead or Alive Ultimate Sega Saturn version, and is generally considered more of a collector's disc than for its content. "Dead or Alive Ultimate 2", being a remake created after the debut of "Dead or Alive 3", takes elements and mechanics from both its original iteration and successor. The action of 3D-axis movement is as free-formatted as "DOA3", and Hitomi is now a playable character albeit outside story mode. Other elements have been kept intact from "DOA2". These include higher damaging counters than in "DOA3", environmental hazards not warranting a knockout on a character, and a counter mechanism that is much harder to execute.