Speculation

I have to admit, I have a few pet peeves. One of them is when a group of people start to speculate on a fact that they do not know, but could simply find out! It happens all too frequently: "it's possible", "no, it's not possible!", "it's red", "it's blue", "customers love it", "customers hate it".  Facts can and should be looked up or tested in a simple experiment.  No need to speculate about them.  To paraphrase the famous Jim Barksdale quote:  If we have facts, we'll use facts.  If we have opinions, we'll use mine.