Schrödinger's cat regard the "alive and dead" cat superposition as quite real. Intended as a critique of the Copenhagen interpretation (the prevailing orthodoxy in 1935), the Schrödinger's cat thought experiment remains a defining touchstone for modern interpretations of quantum mechanics. Physicists often use the way each interpretation deals with Schrödinger's cat as a way of illustrating and comparing the particular features, strengths, and weaknesses of each interpretation. Schrödinger wrote: Schrödinger's famous thought experiment poses the question, ""when" does a quantum system stop existing as a superposition of states and become one or the other?" (More technically, when does the actual quantum state
Dead or Alive 2 remake of "DOA" and "DOA2" for the Xbox with a greatly improved graphics engine. As it was created after "Dead or Alive 3", it 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, as well as Tengu are now playable characters (albeit outside story mode), but other elements have been kept intact from "DOA2". The biggest set of changes instituted in "Dead or Alive Ultimate" are online play over Xbox Live and the inclusion of slopes, which are a type of environmental hazard. Dead or Alive