-------- Mensaje original --------
Asunto:         Re: [Fis] Physics of computing
Fecha:  Fri, 16 Mar 2012 13:24:38 +0100
De:     Dr. Plamen L. Simeonov <plamen.l.simeo...@gmail.com>
Para:   Pedro C. Marijuan <pcmarijuan.i...@aragon.es>
Referencias: <20120316041607.66ffc68000...@1w8.tpn.terra.com> <4f6321c3.5000...@aragon.es>


Dear All,

I could not agree more with Pedro's opinion. The referred article is interesting indeed. but, information is only physical in the narrow sense taken by conventional physicalistic-mechanistic-computational approaches. Such a statement defends the reductionist view at nature: sorry. But information is more than bits and Shanno's law and biology has far more to offer. I think we are at the beginning of a new scientific revolution. So, we may need to take our (Maxwell) "daemons" and (Turing) "oracles" closer under the lens. In fact, David Ball, the author of the Nature paper approached me after my talk in Brussels in 2010 on the Integral Biomathics approach and told me he thinks it were a step in the right direction: biology driven mathematics and computation.

By the way, our book of ideas on IB will be released next month by Springer: http://www.springer.com/engineering/computational+intelligence+and+complexity/book/978-3-642-28110-5 If you wish to obtain it at a lower price (65 EUR incl. worldwide delivery) please send me your names, mailing addresses and phone numbers via email to: pla...@simeio.org <mailto:pla...@simeio.org>. There must be at least 9 orders to keep that discount price..



On Fri, Mar 16, 2012 at 12:19 PM, Pedro C. Marijuan <pcmarijuan.i...@aragon.es <mailto:pcmarijuan.i...@aragon.es>> wrote:

   Dear discussants,

   I tend to disagree with the motto "information is physical" if taken
   too strictly. Obviously if we look "downwards" it is OK, but in the
   "upward" direction it is different. Info is not only physical then,
   and the dimension of self-construction along the realization of life
   cycle has to be entered. Then the signal, the info, has "content"
   and "meaning". Otherwise if we insist only in the physical downward
   dimension we have just conventional computing/ info processing. My
   opinion is that the notion of absence is crucial for advancing in
   the upward, but useless in the downward.
   By the way, I already wrote about info and the absence theme in a
   1994 or 1995 paper in BioSystems...



   walter.riof...@terra.com.pe <mailto:walter.riof...@terra.com.pe>

    Thanks John and Kevin to update issues in information,
    computation, energy and reality.

     I would like point out to other articles more focused in how
    coherence and entanglement are used by living systems (far from
    thermal equilibrium):

    Engel G.S., Calhoun T.R., Read E.L., Ahn T.K., Mancal T., Cheng
    Y.C., Blankenship R.E., Fleming G.R. (2007) Evidence for wavelike
    energy transfer through quantum coherence in photosynthetic
    systems. Nature, 446(7137): 782-786.

    Collini E., Scholes G. (2009) Coherent intrachain energy in
    migration in a conjugated polymer at room temperature.  Science,
    vol. 323 No. 5912 pp. 369-373.

    Gauger E.M., Rieper E., Morton J.J.L., Benjamin S.C., Vedral V.
    (2011) Sustained Quantum Coherence and Entanglement in the Avian
    Compass. Phys. Rev. Lett., 106: 040503.

    Cia, J. et al, (2009)  Dynamic entanglement in oscillating
    molecules.  arXiv:0809.4906v1 [quant-ph]




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