Steve, I wonder whether you are interested in the concept or the
words. The /concept/ of a distinction is broad enough to apply to all
those intellectuals who conceive of a difference between predicting
distinctly human actions and predicting the events of nature and
non-human actions. I first thought about Mangoldt and other
pre-Knightian efforts to define the entrepreneur. But then I expanded
my thinking to include those who conceived of economics as a distinct
"science."
The verbal distinction leaves something to be desired and even Knight
had some difficulty maintaining it. The problem is that the word
"uncertainty" in everyday speech implies an object. One thinks:
"uncertainty about what?" Risk has no such implication.
Would you like to clarify?
Pat Gunning