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Bob Maruca's avatar

"Which ought to be worrying, because we know..."

I thought you were going to say, "because we know that air traffic control is one of the most mentally exhausting and difficult professions."

Doug Clow's avatar

I don’t know Stafford Beer’s work hugely well and wouldn’t dream of saying what he meant. But as a former biochemist, signal transduction is the process whereby a signal from outside a cell is detected and acted on. Most transduction pathways start with signalling molecules outside the cell binding to receptors on the cell surface, which in turn then trigger a response inside the cell, typically a cascade of reactions. In the eye the external signal starts not with a molecule binding to a receptor but a photon of light falling on a cone or rod cell, which eventually triggers a nerve impulse.

So I have always understood the organisational metaphor to be the process whereby one entity detects and then acts on signals that come from outside. And soft-systems style you can look at transduction at multiple granularities/levels of system.

(Relatedly, “transduction” without the leading “signal” also means the process of inserting DNA into a target cell - which can be done eg by viruses or biologists wanting to affect a cell to make it do something it doesn’t currently do. But I doubt that’s the one in this context since it doesn’t often happen in the eye.)

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