by Chet Raymo
"Is time something that is defined by the ticking of a cosmic clock, God's wristwatch say? Time doesn't exist except for the current tick. The past is irretrievably gone. The future does not yet exist. Consciousness is awareness of a moment. Or is time a dimension like space? We move through time as we move through space. The past is still there; we're just not there anymore. The future exists; we'll get there. We experience time as we experience space, say, by looking out the window of a moving train. Or is time…
As I sit here at my desk under the hill, looking out at a vast panorama of earth, sea and sky, filled, it would seem, infinitely full of detail, so full that my awareness can only skim the surface, I have that uneasy sense that it's going to be damnably difficult to extract consciousness, as a thing, from the universe in its totality. I think of that word "entanglement," from quantum theory, and I wonder to what extent consciousness is entangled, perhaps even with past and future.
Who knows? Perhaps consciousness, or what I think of as my consciousness, is just a slice of cosmic consciousness, in the same way that the present is a slice of cosmic time. As a good Ockhamist, I am loathe to needlessly multiply hypotheses. But time will tell. Or consciousness will tell. Or something.”