SOPHISTICATED PRECISION: THE UNBEARABLE LIKENESS OF GREY
Revisiting
Isadore Nabi’s famous essay on the tendencies of motion, I am struck with
today’s rapidly accelerating statistical methodology and its ability to
measure, with precision unheard of just 20 years ago, the greyness of the
swan. But a philosophical question
associated with this remarkable trend comes to mind, namely “who gives a
shit.” Now that is perhaps a bit
harsh. It is, without doubt, important
in everyday life. I am extremely pleased
that the pilot landing the 747 on which I am travelling has an instrument that
can measure with great precision the distance between the runway and the
plane’s wheels. And when my house was
recently remodeled, matching the paint on the outside walls was not done by the
painstaking methods I used when I tried to match paint in my first apartment
many years ago, but rather with an automatic measuring device that translated
the complex reflection spectrum of the current paint to parameters that the
local hardware store could punch into its automatic color dispenser in its
paint department. These are good things.
Yes, it is
frequently important to know exactly what shade of grey sits on the feathers of
the swan. But like the spontaneous
laughter when hearing a new and clever joke rather than the retelling of an old
one, regardless of the artistic flair of the teller, when I see one of those
black swans --- yeesss!
Should the
scientist keep with the program and work on even more sophisticated R code to
measure with ever increasing precision the greyness of our beautiful
swans? Should we reward the scientist
who comes up with the next level of precision? And then the next? And then the
next? Or should we encourage her to
strike out and search the world for the black ones.
Perhaps it is a matter of personal
choice. But certainly that choice should
be made through a rational choice model, not by slithering down well-worn ruts.