He firmly believed that physics should be able to describe a reality that exists apart from the whims of conscious observers.

Can it be that each conscious observer on board thePioneer has given rise to a copy of the ship, each of which contains only one person?

Maybe only one conscious observer could remain in ex-istence.

Cinema, Kracauer later wrote, "aims at transforming the agitated witness into a conscious observer."

The conscious observer can then take note if he wishes to do so.

The third suggestion seizes on the role of the conscious observer to provide the resolution of our difficulty.

In principle this could give some rational insight, in terms of an extended scientific model, into how conscious observers could produce wavepacket collapse.

The cat would be either dead or alive long before the box is opened by a conscious observer.

A brain that was simple enough to be fully known would be too simple to contain conscious observers who might know it.

He was subtly ridiculing some of his mystical colleagues who liked to proclaim that conscious observers somehow conjure the real world into existence.