Abstract
A prolific science writer and journalist, as well as a working university professor and molecular biologist, Jesper Hoffmeyer was born in Copenghagen, Denmark on Februrary 21, 1942. “Born during the second world war in occupied Denmark and to a family with strong anticlerical and moderate leftist persuasions,” recounts Hoffmeyer, “I was destined to develop a materialistic, and indeed a positivistic, understanding of our world. To fight irrationalism in all its disguises was an inherent value in my upbringing and in choosing to become a biochemist, I faithfully continued along this path. …But over time, it gradually occurred to me that some of the central tenets of such materialistic self-confidence were perhaps less secure than had been previously assumed” (2009: 292).
Jesper Hoffmeyer (1942– )
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Notes
- 1.
Genetics, properly speaking, comprises both a transmission aspect and an expression aspect. The transmission aspect is concerned with the transmission of genes from generation to generation, whereas the expression aspect deals with the question of how genes actually do produce the traits ascribed to them. For most of its history, however, the science of genetics has restricted itself to the first of these two aspects, the transmission phenomena, while more or less leaving the expression problem for the future. It is one thing, for instance, to claim that the taboo against incest is genetically anchored, quite another to explain how a gene might manage to cause such an effect. See more on this in Chapter “Universe of Mind: The Semiophere”, especially Lenny Moss’s distinction between gene-P and gene-D (Moss 2001). This emphasis on the transmission aspects, of course, has made the reductionist strategy so much easier to perpetuate.
- 2.
Johannsen actually compared the concept of the gene as a material structure that resides within the cells with the naive belief – of the peasants of his own time – that a team of horses was hidden inside the locomotive.
- 3.
I had better be careful here. A few years ago, the estimated number of genes in the human species was something like 80,000. After the publication of the map of the human genome in 2001, there were reported to be only 30,000–40,000 genes. And the latest estimate I saw had only 20,000–25,000 genes (Nature October 21, 2004).
- 4.
Planning itself, of course, may contain elements of analog coding such as diagrams or drawings, but these are generally superstructures based on numerical or otherwise abstract codifications.
- 5.
Two decades ago, I suggested a less fully developed version of the idea of code-duality (Hoffmeyer 1987).
- 6.
For example, if the gene codes for a distinct enzyme, the rate of degradation of this enzyme will determine how long the enzyme will remain active in the cell, and thus also determine the concentration of metabolites that are available for catalytic reaction. Since the concentration of metabolites will oft en have a regulatory influence on other cellular processes, the gene indirectly also determines the temporal relations between these different processes (see Fig. 5.5). However, the gene cannot, for good reason, determine precisely where in the cell a given molecule will be located at a given time. This problem may perhaps be illustrated by imagining a protein that is the size of a family car. The cell would, in relation, be the size of Copenhagen (although spherical rather than flat). And, due to the intricate internal structure of the cell, the freedom of movement of the proteins inside the cell would hardly be any bigger than the freedom of movement of a car in the street web of Copenhagen.
- 7.
Please notice that there is no sequence of nucleotide triplets per se – just an endless string of bases whose “reading” determines what will be acted upon as actual triplets. The base sequence, CAGTCAAAGAAC, might for instance be read as composed by the triplets: CAG-TCA-AAGAAC. But in another reading frame it might be read as C-AGT-CAA-AGA-AC. (See Chapter “Universe of Mind: The Semiophere” for further details on the semiotics of the genome.)
- 8.
- 9.
Lamarckian inheritance – by conflating the analog and the digital – loses the fertility of their interplay, which, seen semiotically, is the key to evolution.
- 10.
- 11.
That “context space expands” in our biosphere is in accordance with the analyses given by Stuart Kauffman (2000, 151), in the book Investigations, where he shows that the adjacent possible – i.e., the set of states that could possibly be realized in the next step of the ongoing material reconfiguration of the biosphere – exhibits exponential growth: “Our biosphere and any biosphere expands the dimensionality of its adjacent possible, on average, as rapidly as it can.”
- 12.
Code-duality may also be seen as the semiotic core of cultural evolution (Hoffmeyer and Emmeche 1991, 2005 [1991]).
- 13.
The analog-digital gestalt shift may in some cases be observed in individual hieroglyphs that may function both as ideograms and as phonograms. A hieroglyph resembling an eye may, depending on the context, signify either the notions blind, awake, or weep – but it may also signify simply the sound ir, because the name for an eye is irt (Den store danske Encyclopædi vol. 8, p. 438).
- 14.
Bateson is here referring to Bertrand Russell’s type theory (Russell and Whitehead 1910–1913).
- 15.
Stjernfelt (1992) has observed that the linguistic concept of categorial perception perhaps might be extended so as to cover transformations from iconic to symbolic representations quite generally, and this idea concords with the significance I have ascribed here to the analog-digital shift. An alarmone, as will be discussed in connection with endosemiotics in Chapter “The Clever Hans Phenomenon”, is yet another example of such a shift.
- 16.
- 17.
The acyl-group in this case is a 3-oxohexanoyl group.
- 18.
The complementarity principle of quantum theory refers to effects such as the wave-particle duality, in which different measurements made on a system reveal it to have either particle-like or wave-like properties. In Bohr’s understanding, complementarity reflected the weaknesses of human language and not any deeper property of reality (Einstein and Infeld 1938).
- 19.
Dawkins would perhaps reject outright the notion of a symbolic domain as something really existing. But then, how would he propose to solve the von Neumann-Pattee paradox?
- 20.
“… that mode of bringing facts about according to which a general description of result is made to come about, quite irrespective of any compulsion for it to come about in this or that particular way, although the means may be adapted to the end. The general result may be brought about at one time in one way, and at another time in another way. Final causation does not determine in what particular way it is to be brought about, but only that the result shall have a certain general character” (CP 1: 211).
- 21.
Young readers may not know the disease rachitis – or rickets (which, by the way, in Denmark we call “English disease”) – that is caused by a deficiency of vitamin D, and which, in the childhood of this author, was still sufficiently common for everybody to know the characteristically hollow-chested look of children having suffered from this disease.
- 22.
Ironically, this is an obsession that plays right into the hands of precisely those radical social-constructivist theories (e.g., those claims that reality, or at least the scientific model of it, is nothing but a social construction set up to perpetuate unequal power relations) that many scientists so despise.
- 23.
Vehkavaara (2003) has suggested the term externalized purposes for this survival strategy.
- 24.
Molecular genetics has increasingly undermined the simple genotype-phenotype relationship that was so passionately believed in just a few years ago. For it has become increasingly apparent that genomic systems exhibit unexpectedly integrative aspects. The lactose-positive phenotype in E. coli, for example, presupposes not only that the lac-operon proteins are expressed, but also that the genes that code for adenylate cyclase and for the cAMP receptor protein are expressed. “In many cases,” writes James A. Shapiro (1999, 25), “it is really impossible to assign a specific organismal phenotype to a particular locus, because its gene product(s) can participate in the execution of multiple cellular or developmental programs.”
- 25.
I agree with Sarkar (1996) in his demonstration of the inconsistencies inherent in the information concept of molecular biology. From this, however, Sarkar draws the conclusion that we had better stick to strictly chemical-biological terminology. Biosemiotics draws the opposite conclusionand introduces an explicitly semiotic understanding, seeing information as the exchange of signs or sets of signs, i.e., coded messages. A thorough discussion of this understanding is given in Emmeche (1999). Sharov (1992) also has recommended a semiotic understanding of biological information, and Jablonka (2002), as we saw in Chapter “The Logic of Signs”, uses a concept of information that is nearly indistinguishable from the Peircean sign concept.
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Favareau, D. (2009). The Semiotics of Nature: Code-Duality. In: Essential Readings in Biosemiotics. Biosemiotics, vol 3. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9650-1_19
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