Yeah, but if it was in a browser, then each browser designer would impliment it differently...
Mozilla would give an answer that was beautifully rendered, and may even be right.
IE would give the 'commonly accepted answer' whether it was correct or not
Firebird would give an answer that was lighter than mozilla.
Lynx would just give you the right answer, as long as there wasn't any javascript.
My favourite google calculator phrase so far has to be.
"speed of light in furlongs per fortnight" (approx 1.8 x 10^12 )
although it didn't know chains per month...