Ruby Jewel
If time doesn't exist in the spiritual world, then of course they would know everything that has ever happened and will ever happen.
What exactly is "archetypal unconsciousness"?
When Freud discovered the 'Unconscious" in our psyche, Carl Jung took it another step and discovered it was part of a "Collective Unconscious" and that the unconscious consists of psychic energy in the form of archetypes which are basically constellated energies of archaic and primitive beliefs that are still a part of our psychic realm. They have an autonomous energy that speaks to us through our dreams and synchronicities. I apologize that this is such a cryptic explanation.....but the subject is a massive one, and well worth investigating. I suppose I would recommend Jung's analytical psychology as a place to begin, if you were interested. The images in the tarot are these same archetypes of the collective unconscious that constellate the energies in our personal unconscious. And, yes, you are correct in your above statement. They know everything that has happened and ever will happen, but there is no such thing as a "linear time" in that universe, which I tend to liken to Einstein's "other world" outside space and time.