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Topic: A question about straight lines
Replies: 103   Last Post: Feb 8, 2014 8:28 AM

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Joe Niederberger

Posts: 2,881
Registered: 10/12/08
Re: A question about straight lines
Posted: Jan 30, 2014 10:45 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

J Crabtree says:
- -----------------------------
Points don't make lines.
Lines don't make surfaces.
Surfaces don't make solids.

A point in motion makes a line.
A line in motion makes a surfaces.
A surface in motion makes a solid.
- --------------------------------

Motion implies time; time doesn't really exist in mathematics. Nevertheless, lets play with this a bit more.

Is time real? Kurt Godel investigated that question very seriously. His contribution is published in a special event organized for Einstein around his 70th birthday, "Library of Living Philosophers, Vol VII", Paul Arthur Schlipp editor.

Godel found a new solution to General Relativity in which no universal time coordinate can be established. Such a universe has "closed time-like curves", a kind of natural time machine. Godel concludes time is not objective (regardless of whether we live in such a universe or not, on the basis that such universes could exist, the nature of time in any GR-governed universe must be that time is even more space-like than previously thought.)

What's this mean for your moving point? The line existed before the point moved through it! The line and all its points are already there is some sense. "Moving point" is an illusion.

Now its an interesting recent result that:

1. There is in general no procedure to determine whether any given solution to GR is a Godel-universe or not.

2. If one "picks a solution" at random to GR, and for a wide class of probability measures, the probability that the solution will be a Godel-universe with CTCs is 1.

Cheers,
Joe N


Date Subject Author
1/26/14
Read A question about straight lines
Neighbor
1/26/14
Read Re: A question about straight lines
kirby urner
1/27/14
Read Re: A question about straight lines
Neighbor
1/27/14
Read Re: A question about straight lines
Robert Hansen
1/27/14
Read Re: A question about straight lines
Bishop, Wayne
1/27/14
Read Re: A question about straight lines
kirby urner
1/27/14
Read Re: A question about straight lines
Neighbor
1/27/14
Read Re: A question about straight lines
Robert Hansen
1/27/14
Read Re: A question about straight lines
Neighbor
1/27/14
Read Re: A question about straight lines
Neighbor
1/28/14
Read Re: A question about straight lines
Neighbor
1/28/14
Read Re: A question about straight lines
Robert Hansen
1/28/14
Read Re: A question about straight lines
Joe Niederberger
1/28/14
Read Re: A question about straight lines
Robert Hansen
1/28/14
Read Re: A question about straight lines
Neighbor
1/28/14
Read Re: A question about straight lines
Robert Hansen
1/28/14
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Joe Niederberger
1/28/14
Read Re: A question about straight lines
Joe Niederberger
1/28/14
Read Re: A question about straight lines
Neighbor
1/28/14
Read Re: A question about straight lines
Robert Hansen
1/28/14
Read Re: A question about straight lines
Joe Niederberger
1/28/14
Read Re: A question about straight lines
Joe Niederberger
1/28/14
Read Re: A question about straight lines
Robert Hansen
1/28/14
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Neighbor
1/28/14
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Gary Tupper
1/28/14
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Robert Hansen
1/28/14
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Joe Niederberger
1/28/14
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Joe Niederberger
1/28/14
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Louis Talman
1/28/14
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Joe Niederberger
1/28/14
Read Re: A question about straight lines
Joe Niederberger
1/28/14
Read Re: A question about straight lines
Joe Niederberger
1/28/14
Read Re: A question about straight lines
Joe Niederberger
1/29/14
Read Re: A question about straight lines
Robert Hansen
1/29/14
Read Re: A question about straight lines
Bishop, Wayne
1/29/14
Read Re: A question about straight lines
GS Chandy
1/29/14
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Domenico Rosa
1/29/14
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Neighbor
1/29/14
Read Re: A question about straight lines
Joe Niederberger
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Read Re: A question about straight lines
Neighbor
1/29/14
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Domenico Rosa
1/30/14
Read Re: A question about straight lines
Bishop, Wayne
1/29/14
Read Re: A question about straight lines
Joe Niederberger
1/29/14
Read Re: A question about straight lines
Neighbor
1/29/14
Read Re: A question about straight lines
Robert Hansen
1/29/14
Read Re: A question about straight lines
Joe Niederberger
1/29/14
Read Re: A question about straight lines
Joe Niederberger
1/29/14
Read Re: A question about straight lines
Robert Hansen
1/30/14
Read Re: A question about straight lines
Neighbor
1/29/14
Read Re: A question about straight lines
Robert Hansen
1/29/14
Read Re: A question about straight lines
Joe Niederberger
1/30/14
Read Re: A question about straight lines
Louis Talman
1/29/14
Read Re: A question about straight lines
Joe Niederberger
1/30/14
Read Re: A question about straight lines
Neighbor
1/30/14
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Jonathan Crabtree
1/30/14
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Joe Niederberger
1/30/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
kirby urner
1/30/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Neighbor
1/30/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Neighbor
1/31/14
Read Re: A question about straight lines
Robert Hansen
1/31/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Robert Hansen
1/31/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Neighbor
1/31/14
Read Re: A question about straight lines
Robert Hansen
1/31/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Joe Niederberger
1/31/14
Read Re: A question about straight lines
Robert Hansen
1/31/14
Read Re: A question about straight lines
Neighbor
1/31/14
Read Re: A question about straight lines
Robert Hansen
1/31/14
Read Re: A question about straight lines
GS Chandy
1/31/14
Read Re: A question about straight lines
GS Chandy
1/31/14
Read Re: A question about straight lines
GS Chandy
1/31/14
Read Re: A question about straight lines
Joe Niederberger
2/1/14
Read Re: A question about straight lines
GS Chandy
2/1/14
Read Re: A question about straight lines
Robert Hansen
2/1/14
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kirby urner
2/1/14
Read Re: A question about straight lines
Robert Hansen
2/1/14
Read Re: A question about straight lines
Joe Niederberger
2/1/14
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Robert Hansen
2/1/14
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Joe Niederberger
2/2/14
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Robert Hansen
2/2/14
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kirby urner
2/1/14
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Joe Niederberger
2/2/14
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Robert Hansen
2/2/14
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James Elander
2/2/14
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GS Chandy
2/2/14
Read Re: A question about straight lines
Robert Hansen
2/2/14
Read Re: A question about straight lines
GS Chandy
2/2/14
Read Re: A question about straight lines
Robert Hansen
2/2/14
Read Re: A question about straight lines
Joe Niederberger
2/2/14
Read Re: A question about straight lines
GS Chandy
2/2/14
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Robert Hansen
2/2/14
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2/4/14
Read Re: A question about straight lines
GS Chandy
2/4/14
Read Re: A question about straight lines
GS Chandy
2/4/14
Read Re: A question about straight lines
GS Chandy
2/8/14
Read Re: A question about straight lines
GS Chandy

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