Source: cirosantilli/wave-function-collapse

= Wave function collapse
{wiki}

Similar to <quantum jump> in the <Bohr model>, but for the <Schrödinger equation>.

The idea the the wave function of a small observed system collapses "obviously" cannot be the full physical truth, only a very useful approximation of reality.

Because then are are hard pressed to determine the boundary between what collapses and what doesn't, and there isn't such a boundary, as everything is interacting, including the observer.

The <many-worlds interpretation> is an elegant explanation for this. Though it does feel a bit sad and superfluous.