Topic: Signaling

Quotes

Eddie Dekel, Jeffrey Ely, & Okan Yilankaya, “Evolution of Preferences” (2007)

• If others cannot observe one’s preferences, and hence condition their behaviour on that, there is no advantage in having preferences that differ from the fitness function, which is the determinant of evolutionary success.#

Amotz Zahavi, “The Fallacy of Conventional Signalling” (1993)

• Signals evolve only if it is in the interest of the signaller to supply that information, and only if the information thus supplied is reliable enough for the receiver to take it into account. Hence it is reasonable to assume that once the reliability of the signal is gone the signals will be selected out rather than become conventional.#
• For every message there is an optimal signal, which best ampli­fies the asymmetry between an honest signaller and a cheater.#
• A signal is reliable when the investment required for its use is greater than the potential gain a cheater would make from using it improperly.#

Amotz Zahavi, “Reliability in Communication Systems and the Evolution of Altruism” (1977)

• Lowering the costs [of a signaling system] may at first increase the use of the system, but further decrease in cost should destroy it altogether.#

Chris Knight, “Puzzles and mysteries in the origins of language” (2016)

• Only where meanings don’t matter is ‘syntactical’ complexity free to evolve.#

Kazuo Okanoya, “Sexual display as a syntactical vehicle: the evolution of syntax in birdsong and human language through sexual selection” (2002)

• As soon as a signal is under voluntary control, it can be produced both honestly and for the purposes of deceit. Thus, it is no longer reliably honest like a reflex, limbic signal is. It follows that there is no possibility of creating voluntary strings of semantic tokens (that is, meaningful language) without sacrificing the guarantee of honesty.#Quoted in Chris Knight, “Puzzles and mysteries in the origins of language” (2016)

Roy Rappaport, “Ritual, Sanctity, and Cybernetics” (1971)

• Although man is not, perhaps, the world’s only liar he is surely the world’s foremost liar. Certainly his reliance upon symbolic communication exceeds that of other animals to such an extent that it is probably for man alone that the transmission of false information becomes a serious problem.#