iteration, errors and the entrepreneur

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Ignorance, Iteration and the Entrepreneur Paul Kedrosky Apr 17/08

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Page 1: Iteration, Errors and the Entrepreneur

Ignorance, Iteration and the

EntrepreneurPaul Kedrosky

Apr 17/08

Page 2: Iteration, Errors and the Entrepreneur
Page 3: Iteration, Errors and the Entrepreneur

Four Postulates

Page 4: Iteration, Errors and the Entrepreneur

Postulate #1

Page 5: Iteration, Errors and the Entrepreneur
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Postulate #2

Page 7: Iteration, Errors and the Entrepreneur

Far better an approximate

answer to the right question,

which is often vague, than an

exact answer to the wrong question, which can always be

made precise.J. Tukey (1962), Annals of Mathematics and Statistics 33:1-67

Page 8: Iteration, Errors and the Entrepreneur

Postulate #3

Page 9: Iteration, Errors and the Entrepreneur

"What the deuce is it to me? You say that we go round

the sun. If we went round the moon it would not make

a pennyworth of difference to me or to my work."                 -- Sherlock Holmes in "A Study in Scarlet", Arthur Conan Doyle

Page 10: Iteration, Errors and the Entrepreneur

Postulate #4

Page 11: Iteration, Errors and the Entrepreneur
Page 12: Iteration, Errors and the Entrepreneur

IgnoranceQuestionsFocusOptimism

Page 13: Iteration, Errors and the Entrepreneur

How You Do What

You Do

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Page 17: Iteration, Errors and the Entrepreneur

If I am interested in, say, the

distribution of the intensities of hurricanes, I cannot just “collect data more frequently”: I

will just have to wait for the next hurricane to arrive.

Source: R. Rebonatto, Plight of the Fortune-Tellers (2007)

Page 18: Iteration, Errors and the Entrepreneur

Gorillas in our midst

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Page 20: Iteration, Errors and the Entrepreneur

ScratchPeripheralPerspectiveDataGorillasIterate

Page 21: Iteration, Errors and the Entrepreneur

Tomorrow is going to be

wonderful since today,

I do not understand anything.

- Niels Bohr

Page 22: Iteration, Errors and the Entrepreneur

A challenge.