``Confirmation bias ... connotes the seeking or interpreting of evidence in 
ways that are partial to existing beliefs, expectations, or a hypothesis in 
hand.'' [ 1 ]
On Nov 28, 2012, at 1:18 AM, Randy Bush wrote:

> thank you.  this makes a lot more sense than taking well-known
> exteme worst cases (since fixed) and using them to calculate a
> so called 'lower bound.'  your document looks like responsible
> engineering and describes about the numbers we have been
> expecting and talking all along.  thanks.

Actually, Randy, engineering with the upper bound is pretty typical.  The 
counter tends to be viewed as quite amateurish.  Understanding failures and 
failings is part of responsible engineering.  In fact, codifying a system's 
design after building an implementation, and then retrofitting requirements to 
that design so that we can _then_ back into a threat model that befits a 
system's capabilities is typically frowned upon by engineers.

ymmv,

Eric


[ 1 ]   Nickerson, Raymond S. "Confirmation bias: A ubiquitous phenomenon in 
many guises." 
        Review of General Psychology; Review of General Psychology 2, no. 2 
(1998): 175.

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