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Ron please do not interprete my inability to grasp , what is to me a higher concept than possibly my mind is capable of managing, as inattention. Merely I find the concept difficult to visualise.
If there is no edge as you say I find it hard to see that as anything other than a condition for ïnfinity" yet I see that the absence of an edge does not place that condition upon your Universe.
I miss something from the time thing maybe.
I have seen artists impressions along the lines you suggest to demonstrate the evolution of the big bang Universe.. a cone representation...each cross section a section of the flow I guess we see as time.
I presume the diameter of the cone is physical "size"... so I see an edge there ... but even there I realise I miss something in the concept.
It has to do with thinking finally if the big bang worked the way they say I visualise a finite Universe...from the outside..and wonder where outside is.
I was thinking last night if time in effect slows "infinitely" to a stop in a black hole does time speed up infinitely in the voids or less dense regions of the Universe.
So I guess where space time is perfectly flat, the grid humans use to describe space and the Universe.. that would equate in the real Universe to areas of the voids and the like.. in these regions time presumably moves faster..but no matter how far you go you can only ever be on a curve as it were.. but thats the math trying to describe the reality which may not follow a humans extrapolation.
I guess thats what the space time sums must say finally. And lack of gravity must also be infinite??? could there be a region perfectly flat.. never.. so time must not run infinetly fast.... why at the other end can we have a black hole I again wonder... I feel there is a point that maybe man and nature part on the implimentation of the idea.
But such a region where space time can only represent "space"as flat would really be "nothing"... mmm I can see why a 3d circle is handy... these matters have me going around in circles thats for sure.
(Still on the positive some thought process is still taking place in this human.)
Will this mean some parts of the Universe are older than others... namely the "emptier" regions?
alex
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