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It From Bit or Bit From It
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What's Ultimately Possible in Physics?
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The Nature of Time
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RECENT POSTS IN THIS TOPIC

Frank Dodd (Tony) Smith, Jr.: on 12/8/08 at 5:21am UTC, wrote Tevian Dray asks for "... a *short* description of each of the various...

Tevian Dray: on 12/7/08 at 19:09pm UTC, wrote Long live E8! As always, your pictures of E8 are among the best with which...

Carlos Castro Perelman: on 9/8/08 at 2:00am UTC, wrote I would like to add some comments to Tony Smith's interesting essay. 1- ...

Frank Dodd Smith: on 9/5/08 at 11:41am UTC, wrote Essay Abstract Time is shown to be a natural component of E8 in an...


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FQXi FORUM
January 27, 2021

CATEGORY: The Nature of Time Essay Contest (2008) [back]
TOPIC: E8 Time by Frank Dodd Smith [refresh]
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Frank Dodd Smith wrote on Sep. 5, 2008 @ 11:41 GMT
Essay Abstract

Time is shown to be a natural component of E8 in an E8 physics model in which our universe is shown to have a low-entropy state at the end of inflation, thus explaining the Arrow of Time.

Author Bio

Frank Dodd Smith, Jr., a/k/a Tony Smith, is a lawyer in Georgia USA, was graduated from Cartersville High School in 1959, received an A.B. degree in mathematics from Princeton University in 1963, received a J.D. degree from Emory University in 1966, and received an Honorable Discharge as TSG from the United States Air Force in 1971. More recent material is at www.valdostamuseum.org/hamsmith/

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Carlos Castro Perelman wrote on Sep. 8, 2008 @ 02:00 GMT
I would like to add some comments to Tony Smith's interesting essay.

1-

In page 4, in the second line, a notation less likely to be

misunderstood would have been something like

120 = 28 + 28 + ( 8 x 8) = 28 + 28 + 64

2-

It is known that the E_8 algebra admits the Larsson

7- grading GL ( 8, R ) decomposition of E_8 :

8 + 28 + 56 + 64 +...

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Tevian Dray wrote on Dec. 7, 2008 @ 19:09 GMT
Long live E8!

As always, your pictures of E8 are among the best with which I am familiar. But I continue to find your presentation to be difficult to follow. This essay is a good start, but I'd really like to see a *short* description of each of the various subalgebras of E8 you are using -- not just pictures, but instead concise statements of mathematical relationships, possibly together with a *brief* statement of their physical relevance.

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Frank Dodd (Tony) Smith, Jr. wrote on Dec. 8, 2008 @ 05:21 GMT
Tevian Dray asks for "... a *short* description of each of the various subalgebras of E8 ..." that I am "... are using ... possibly together with a *brief* statement of their physical relevance ...".

As Tevian says, my essay may well be "... difficult to follow ....", and for that I apologize.

A lot of details that would not fit in the 10-age limit are in my pdf web book at...

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