This effect cannot be used to send any matter, energy, or information faster than light, so this experiment is understood not to violate causality either.

You might not know it until you went home, but you'd just violated causality.

Thou shalt not violate causality within my historic light cone.

According to Du, this implies that there is no possibility of light traveling faster than c (and, thus, violating causality).

However, this effect does not violate causality, since no transfer of information happens.

Despite the non-local term the theory does not violate causality.

Teleportation is a problem mostly, I think, because from the viewpoint of special relativity it violates "causality."

It is generally believed that any theory which violates causality would also be internally inconsistent, and thus useless.

Since the underlying behaviour doesn't violate local causality, it follows that neither does the additional effect of wavefunction collapse, whether real or apparent.

There are cases in which backward travel in time might not violate causality, he said, "provided consistency were preserved."