Dear all
It seems to me that the heat in the debate about the definition of the concept 
of Information is fuelled by deep metaphysical feelings: different people have 
different views about what is REALLY Information. Metaphysical debates can 
never be resolved. May I suggest that we agree on this: there are several 
different concepts, such as Shannon Information, Semantic Information, etc.. 
Each Information concept has its own distinct definition and each one may use 
whichever he/she finds useful.

Whether any of these concepts refers to any real thing, INFORMATION, cannot be 
determined by any empirical research. The reason is that empirical research can 
sometimes decide the truth of a sentence, but never whether the predicate in 
that sentence refers to anything.
 Suppose we have found, empirically, that a sentence of the form ’ X is 
information’ where ’information’ has  a clear definition. (Chose anyone you 
like.) The truth of this sentence entails that the object referred to by ’X’ 
must exist; this is a truth condition for any declarative sentence. But it does 
not follow that the predicate ’Information' refers to something. It suffice 
that the object X belongs to the extension of the predicate. This is the 
nominalist position.
Since 1000 years the core debate in metaphysics has been whether there are 
universals, i.e., properties and relations. The debate about Information is a 
debate about the existence of a property.
I am an empiricist and nominalist, accepting Occam’s razor: one should not 
assume more entities than necessary. And assuming that Information is a 
property, an entithy, is not necessary. We can proceed with scientific 
research, using any information  concept we think useful, without assuming it 
refers to anything.  Metaphysical issues can safely be put to rest.

Lars-Göran Johansson

4 okt. 2017 kl. 19:49 skrev<>:

-------- Messaggio inoltrato -------- Da:<> A: Alex Hankey<> Data: mercoledì, 04 ottobre 
2017, 07:37PM +02:00 Oggetto: Re[2]: [Fis] Heretic

Dear Prof. Hankey,
I come from a free country, where everybody can say his own opinion, in 
particular if his opinion is not totally stupid.
The times of Giordano Bruno and Inquisition are gone.

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mercoledì, 04 ottobre 2017, 06:20PM +02:00 da Alex Hankey<>:

Dear Professor Tozzi,

Might I suggest that you graciously retire from the list,
as you evidently do not wish to participate in what
the rest of us find fascinating topics of discussion.

As a physicist, I have no difficulty in relating to the concept of 
and I am aware of no less than five conceptually totally different
mathematical structures, all of which merit the name, 'information'.

With all good wishes,

Alex Hankey

On 4 October 2017 at 02:30,  
<<>> wrote:

Dear FISers,
After the provided long list of completely different definitions of the term 
"information", one conclusion is clear: there is not a scientific, unique 
definition of information.

Nobody of us is able to provide an operative framework and a single (just one!) 
empirical  testable prevision able to assess "information".
For example, what does "semantics" and "meaning" mean, in empirical terms?
Therefore, to talk about information is meaningless, in the carnapian sense.

Judging from your answers, the most of you are foremost scientists.  Therefore, 
my proposal is to forget about information, and to use your otherwise very 
valuable skills and efforts in other fields.
It is a waste of your  precious time to focus yourself in something that is so 
vague.  It is, retrospectively, a mistake to state that the world is 
information, if nobody knows what does it mean.

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Alex Hankey M.A. (Cantab.) PhD (M.I.T.)
Distinguished Professor of Yoga and Physical Science,
SVYASA, Eknath Bhavan, 19 Gavipuram Circle
Bangalore 560019, Karnataka, India
Mobile (Intn'l): +44 7710 534195
Mobile (India) +91 900 800 8789

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