According to Webster's 7th New Collegiate (happens to be the dictionary on
my desk):
Theory: 1. the analysis of a set of facts in their relation to one another;
2. the general or abstract principles of a body of fact, a science, or an
art; 3. a plausible or scientifically accpetable general principle or body
of principles offered to explain phenomena.
Definition 4b is "supposition, conjecture"
Susan, Homo Sapiens Sapiens
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Life is short, but it's also very wide.
http://www.telepath.com/susanb/