Part 1:
Quote:
Originally Posted by tommac
Yes but C is outside of Zs visibe universe.
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That's an assumption you can't necessarily make.
If you like, make the angle between the lines A-B-C and X-Y-Z smaller than 90
o; and the distances between letters "small enough" so that C-Z
is within the visible universe. (It occurs that since C-Z gets smaller, Z comes into the visible universe anyway - we'd be seeing MORE as time passes).
The point is that objects moving towards a point source will get closer in the direction perpendicular to the direction to the point source.
Part 2:
Quote:
Originally Posted by tommac
The thing is that the gravitational force is very far away and very powerful.
It is outside of our visible universe.
Our entire visibe universe is only a sliver
So what #12 says is correct but we would not detect that.
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What you are saying here is that the distance to the gravity source is so huge that we can't detect or measure the closing of objects as described in part 1.
That still doesn't work, as we'd still be detecting an order or direction to the expansion.
Code:
A B C
Point source
X Y Z
A B C
Point source
X Y Z
i.e. Distances between A-X, B-Y and C-Z are not increasing as do the A-B, B-C, ... distances.
Again, I do not believe this matches observation.