[EM] arrow's, wikipedia part II

[Curt Siffert]

Thanks for the comments regarding Arrow's theorem.  It helped hash some 
things out in the discussion section of wikipedia, and I ended up able 
to get a more modified objection of the *usage* of Arrow's theorem back 
in the wiki page.  Here it is:

http://en.wikipedia.org/wiki/Arrow%27s_impossibility_theorem

Of note, the previous summary definition of Arrow's theorem was:

"In voting systems, "Arrow's impossibility theorem", or "Arrow's 
paradox" demonstrates the impossibility of designing a set of rules for 
social decision making that would obey every "reasonable" criterion 
required by society."

The new summary definition on the wiki page is:

"In voting systems, "Arrow's impossibility theorem", or "Arrow's 
paradox" demonstrates the impossibility of designing a set of rules for 
social decision making that would pass all the criteria collected by 
Arrow in the theorem.  The theorem is frequently misrepresented as a 
proof that a reasonable voting method is impossible."

More is added in a discussion section.

Curt