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 game mechanics, new game content, online multiplayer capabilities, and the inclusion of Hitomi as a playable character. "Dead or Alive Ultimate" is a compilation game that includes a remade version of "Dead or Alive 2", with re-developed graphics and new stages for the Xbox gaming system. It also includes the original Sega Saturn version of the first "Dead or Alive", with smoothed graphics, but lacks the additional content received in the later-released North American PlayStation version (no Bass or Ayane characters or extra costumes). Both editions include online play. "Dead or Alive Ultimate 1" is essentially identical to its original