Showing posts with label natural selection. Show all posts
Showing posts with label natural selection. Show all posts

26 April 2019

Focus comes from natural selection in animals and from individual choice in humans

By George ILIEV
CorporateNature Metaphor Series, No 83

Nocturnal lemurs seem to have lost their trichromatic colour vision in order to be better able to see fruit at night, shows new research. Colour is not visible at all in the dark but brightness is, so natural selection has weeded out adaptations that are no longer necessary, allowing the lemurs to focus on what is important for their survival.

Successful people also have "focus" as one of their key character traits. However, this does not mean one should only ever focus on one thing and nothing else. T-shaped people are the benchmark: broad skills across disciplines (the horizontal bar) and deep specialist skills in one area (the vertical bar). Yet, the vertical bar does not always start out in the middle (T): it can appear on the left (Г) or on the right. It is down to individual choice where the T bar will start from and what one will focus on. After all, you are what you take time to become.

Lemur (Source: Wikipedia)




16 February 2015

Natural selection drove violin design in Renaissance Italy

Market pressure resembling natural selection forced unwitting Italian violin makers to lengthen their violin holes
By George ILIEV

Violin holes kept evolving in 16th-century northern Italy
Early Italian violin makers designed their instruments with a round hole in the middle. None of them knew that this was sub-optimal. Acoustics and sound resonance improve not by increasing the size of the hole but by lengthening the edge of the orifice, according to a study in the Proceedings of the Royal Society. Gradually, customer feedback influenced the workshops of the Stradivari and Guarneri families in Cremona during the Renaissance. Through trial and error they kept increasing the length of the hole's edge until we now have the optimal known design with a typical "f" shaped hole.

Market selection resembles natural selection
Interestingly, the feedback loop of the market closely resembled natural selection: a process entirely based on customers choosing violins that they perceived as having the best acoustics. This, rather than conscious R&D attempts by the makers to "fiddle" with the sound, made the producers prosperous and ensured that the successful designs would be passed down the next generation in the luthier's family.

Unwitting violin makers did not know the recipe for their own success
The producer of the violins with the best sound would simply be favoured by the buyers, even if the producers themselves didn't know why. Violin-making is a complex art of tweaking multiple variables, so the luthiers may have thought that the varnish or the strings they used made their product superb. Yet, in the end it all boiled down to the hole.
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Violin photo attribution: Wikimedia Commons

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