Since it's inception in the late 19th century, cinema has evolved a number of practices on how to and how not to put pictures together to tell a coherent story. In a very real sense, film (and its derivative, video) speaks a language with its own unique signs and syntax. How we "read" a film is bound up with our prior experience and a lifetime of immersion in the prevailing culture. Transitions such as the cut or dissolve, or the fade-in and the fade-out, do more than merely punctuate the narrative of a movie much like the commas or periods in this paragraph. Such transitions convey symbolic meaning to the audience, whether this is grasped consciously or not.
OK, so what's this got to do with "Doing It?" Cut to The Cut.