We're getting closer the thing is history shows that doing one bad thing
does not lead to an accident it is a sum of a number of bad things. Hence
any pilot who does a number of bad things is a bad pilot.

Well, no. "Is a bad pilot" is a statement about a person which is
relatively independent of time, like "is an engineer", "is a poor judge
of character" and "is tall".

A flight, notably one with an unfortuante outcome, occurs in a
relatively tiny slice of time, like "did a calculation", "went on a
horrible date", and "bumped his head on the doorway".

It is in that sense that I count the bad piloting which led to an
unfortunate outcome as a statistic of one, even if several errors were
committed that day.

A "bad pilot" is one I would certainly not want to fly with, because I
believe that it is likely that he will engage in bad piloting. However
I would certainly fly with a "good pilot who had a bad day" because one
bad day does not make a pilot a bad pilot (although it can certainly
make him a dead pilot). I will not draw a conclusion of likelyhood
based on one bad flight, although I will look more closely at his other
flights (and my other flights for that matter) when presented with that.

Jose
--
Money: what you need when you run out of brains.
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