Tom Roberts wrote: wrote:
I have never claimed that spacetime is "real"; it has always been a
model to me. How could it possibly be otherwise???

This, of course, goes beyond mere spacetime, and includes all of GR.

*ALL* of a POiNT on a TiME-line (i.e. WORLD-line) in SPACE-time.?!!
[With NO iNside and NO OUTside (i.e. AMBiENT) and NO related mass].

-- GR is not the be-all and end-all, but it is quite clearly an excellent
model --

Duh.!!
$ GR is not CLEAR ..and is NOT a MODEL.!!
A GR gtr Ph.Tivity POiNT-wanna-be-MASS on a WORLD-line (i.e. TiME-line)
in SPACE-time is *CUTE*, but is NOT mathematically CLEAN ..or ELEGANT.!!

-- for a very large region of the world we inhabit.
Tom Roberts wrote:
Modern physics is quite clear: physical theories are MODELS.

There are *THEORETiCAL models*, *MATHEMATiCAL models* and *REAL* models.
There are, actually, NO *PHYSiCAL* theories, what-so-ever, you dimwit.!!
And, the "theory" is NOT the "mathematics" (i.e. "arithmetic"), dooOP.!!

Offhand, I think most physicists do not think very much about such
concepts as "ontology". But those who consider this at all know we are
searching for _models_ and not any "underlying reality" (whatever that
might mean).

Ph. Tivitists NEVER want to find that "underlying reality" (and, what
that means). It is finished for them, if we EVER find the "underlying
reality". There'd be no more "girls Friday", if you know what i mean.

However, we TRY to *PiECE TOGETHER* "underlying [bits of] reality" with
various MODELs. MODELs are TRiALs & ERRORs of the "underlying reality".

On this issue, I think all thinking physicists basically agree: physical
theories are models.

Who approved your thesis, Tom.?!! Can we see your thesis, Dimwit.?!!

Tom Roberts
Attraction VS geometry.

Hi Brian

whether you are right or not
your titles are intolerably long
take an advice from a friend:

you achieve nothing by that just the opposite
you are annoying people to such an extent
that they ignore you completely.

that is no way to post on that ng
please consider what i just told you
PS
without some* minimal touch* with other readers you are going no where.
so the first rule for that is
dont 'pull the string too much'
if you insist - just do it more moderately.

ATB
Y.Porat
------------------------

Y.Porat wrote:

Hi Brian

whether you are right or not
your titles are intolerably long
take an advice from a friend:

Actually he should be encouraged to keep all his titles insanely long.
That provides another handle to kill-file all the total crap he
cross-posts and the threads that arise from them.

Strangely this one post got through my filters.

you achieve nothing by that just the opposite
you are annoying people to such an extent
that they ignore you completely.

Indeed. It is the best and probably the only solution.

Regards,
Martin Brown

Martin Brown wrote:
Y.Porat wrote:

Hi Brian

whether you are right or not
your titles are intolerably long
take an advice from a friend:

Actually he should be encouraged to keep all his titles insanely long.
That provides another handle to kill-file all the total crap he
cross-posts and the threads that arise from them.

Strangely this one post got through my filters.

you achieve nothing by that just the opposite
you are annoying people to such an extent
that they ignore you completely.

Indeed. It is the best and probably the only solution.

Regards,
Martin Brown
;o)