Scientists talk about 'spacetime'. Time and space, we're told, are one and the same. But what about time? Is time real? It's very real to our consciousness but consider this: the past only exists in our memory and the future only exists in our imagination, so that the present is somehow wedged between them, thinner than a cigarette paper or a fragment of gold leaf. The present is that elusive split second of perception, then it's gone into the past. It only exists because of our awareness of it, our conciousness, the way in which we divide up what we experience. Our conciousness produces the illusion of a 'present'.
Without our conciousness there can be no past or future, only a continuous present so thin, a moment so fleeting, as to be non-existent, a concept or an illusion.
We're told that the 'arrow of time' can only flow forward yet space, which is supposed to be part of spacetime, has no preferred orientation. This view is supported in The Nature of the Physical World by Sir Arthur Eddington 1928. Our concious reasoning informs us that a reversal of the arrow of time would render our universe a place of chaos. Yet it appears that the laws of physics would in fact allow the universe to run forwards or backwards. A physicist will tell you that the arrow of time does not of necessity have to run forward at all.
So the case for 'time' becomes less and less convincing. If there is no case for time, then distance in space also comes into question. Perhaps then our universe has neither time nor size. Our senses and our awareness deceive us to enable us to function at all! Time may have a purely mathematical value as on an axis of a graph but no real physical existence. Space is measured in terms of distance which implies an element of time, upon there is now some doubt. "Reality is a process that requires our conciousness" (Lanza). Space and time are simply the way our mind tries to put everything together. Einstein said that reality is a 'persistent illusion'. Our brain is probably giving us the illusion of this world of which we believe we are aware.
So, no space and no time! Both are illusions. But does it really matter? The illusion itself, what we call our 'existence', does seem to have a value of its own. I tend to the view expressed by one of my professors at university - tomorrow we die, so eat, drink and be merry and bring on the dancing girls!
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