That was actually one minor plot point in Robert Sawyer's novel, Flashforward, that stuck in my mind. When everyone on the planet lost consciousness at the same time (their minds being projected into the future) all video recording just saw essentially static.

The theory was that it was actually recording the quantum froth as it were, of the unresolved probabilities until an observer woke up and it collapsed into one outcome.

I'm perhaps not explaining it well. OTOH, it is called science-FICTION.