Dynamics in a Quantum Superposition

[Varon]

How much dynamics can occur in the deterministic Schroedinger Equation in its evolution while it is in unitary state (before collapse)? For example. Is it possible for the Big Bang and evolution of stars to solar system and planets to occur while everything is inside a superposition (that doesn't involve Many Worlds but just as superposition of possibilities)? I'm trying to analyze the physicist Wigner who proposed that consciousness caused collapse of the wave function. Before life begins on earth. He seems to be saying that the universe is in a state of superposition. After life reaches a certain theshold. It finally collapsed the wave function of the Earth and the surrounding. Is this possible? Does the Schroedinger Equations allows for instance the evolution of a solar system while it is still unitary and before the wave function collapse? Or is it not possible? Why then did this physicist Wigner propose it? I'm somewhat confused by all this. Hope someone can clarify once and for all. Thanks.

 

[Varon]

How much dynamics can occur in the deterministic Schroedinger Equation in its evolution while it is in unitary state (before collapse)? For example. Is it possible for the Big Bang and evolution of stars to solar system and planets to occur while everything is inside a superposition (that doesn't involve Many Worlds but just as superposition of possibilities)? I'm trying to analyze the physicist Wigner who proposed that consciousness caused collapse of the wave function. Before life begins on earth. He seems to be saying that the universe is in a state of superposition. After life reaches a certain theshold. It finally collapsed the wave function of the Earth and the surrounding. Is this possible? Does the Schroedinger Equations allows for instance the evolution of a solar system while it is still unitary and before the wave function collapse? Or is it not possible? Why then did this physicist Wigner propose it? I'm somewhat confused by all this. Hope someone can clarify once and for all. Thanks.

I still can't imagine how dynamics occur in the Schrodinger Equation. When it is said that it can evolve deterministicly, does it mean unmeasured quantum objects can have dynamics. Wigner proposed our consciousness is what collapse the wave function. So in a distant galaxy without consciousness, the entire galaxy is in superposition. How can stars and planets evolve when there is no definite positions at all inside the superposition? Anyone got an idea?