These definitions might help you Shamu. And fear not, there are no mind-altering messages imbedded. I've already scanned this post with my secret de-coder ring issued by the military.
Fact - something that actually exists; reality; truth: Your fears have no basis in fact.
something known to exist or to have happened: Space travel is now a fact.
a truth known by actual experience or observation; something known to be true.
Opinion - a belief or judgment that rests on grounds insufficient to produce complete certainty.
a personal view, attitude, or appraisal.
the formal expression of a professional judgment