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...


---Pedro escribió:

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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Pedro C. Marijuán
Grupo de Bioinformación / Bioinformation Group
Instituto Aragonés de Ciencias de la Salud
Avda. Gómez Laguna, 25, Pl. 11ª
50009 Zaragoza, Spain
Telf: 34 976 71 3526 (& 6818) Fax: 34 976 71 5554

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