Dear Dr Weinberg

 

If space is discrete and time is continue,4-dimensional space-time lost its sense ?

 

Sincerely

 

Yuri Danoyan

 

 

Yes

 

Stephen Weinberg

Edited August 2, 200817 yr by Yuri Danoyan
multiple post merged

Wow.

Who lost their sense?

I imagine it would be difficult to construct transformations which mix space and time if they both that a very different character. Thus space-time becomes "lost".

Andrei Linde:

 

Lorentz invariance will be lost, i.e. space-time of special theory of relativity will loose its standard meaning.

 

Yuri:

 

If space is discrete and time- continue....

 

How about ds/dt ? Also become meaningless?

 

Andrei:

 

Why do you spend your time on weird ill defined concepts?

 

Yuri:

 

It is not weird question,because ds part of space;dt part of time.

 

Because if used binary code for signify discrete and continue:

 

ds/dt = 10/11 or 01/11 ,we get 2/3 or 1/3;

 

look like charges of quarks;

Edited August 3, 200817 yr by Yuri Danoyan
multiple post merged

Dear Dr Weinberg

 

If space is discrete and time is continue,4-dimensional space-time lost its sense ?

 

Sincerely

 

Yuri Danoyan

 

 

Yes

 

Stephen Weinberg

 

It looks like when he wrote (if this were a real exchange) Dr. Weinberg did not spell his name correctly.

This is real exchange as well as all my correspndence with Frank Wilczek and Gerhard Hooft.See my other posts.

It looks like when he wrote (if this were a real exchange) Dr. Weinberg did not spell his name correctly.

 

TBH, I've been very much struggling to understand Yuri's intent here at SFN, as discussion is not something his posts seem to generate... seems more like he's treating SFN as a personal online diary. Either way, though, I'll give him the benefit of the doubt and suggest that he merely made a transcriptional error, probably retyping by hand the response instead of copy/pasting it from an actual email.

 

I really don't know if this is the case, but I suppose it is a non-zero probability.

http://blogs.chron.com/sciguy/archives/2008/01/the_states_most.html

 

Different spelling casual

In "The Character of Physical Law", Lecture#7 "Seeking New Laws" Feynman wrote about his strong suspicion on simple presentation of geometry on the smallest unit of space is wrong.

Why Feynman didn't speak about traditonal 4-dimensional

space-time unit,but only about space?

Edited August 18, 200817 yr by Yuri Danoyan
multiple post merged