There are phrases we’ve all heard all our lives and even used as if they made sense, but then when we think about them, they really don’t make any sense at all, like the phrase, “Think about it.” 

When you tell somebody to “think about it,” you are implying that the person currently is not thinking about it.  And what somebody is thinking is the one thing you cannot know.  Ever.  Either that, or you could be implying  that person is an idiot incapable of thinking. 

And then there’s the added phrase, “Stop and think about it.”  Is it really necessary that I stop whatever I might be doing in order to think?  And if so, will stopping really help me?

What it comes down to is that when you say, “Think about it,” what you are actually saying is all that is necessary to prove your point of view is my “thinking about it.”  Documented proof – actual evidence – is not necessary.  And if you stop and think about, rarely is that ever the case.