The art of editing is addition by subtraction. It isn’t how much you can fit, but what can be excised. Like a sculptor you peel away layers to fully realize your vision. When watching a video, it’s the edits you don’t notice that are important. The smooth transition of audio in the background. The order of images which create the rhythm of the piece and flesh out the narrative. These and other elements are what make a video flow. Clients often wonder why asking even for a small change can be time consuming and costly. But even one change can a have ripple effect on audio and other parts of the video. It all seems seamless and easy and that is the point. You hire an editor for his knowledge and the speed in which he can work. Sure you can do the same work and maybe figure it out. But it’s a choice between spending 20 - 30 hours to realize your vision. Or just a few hours. Time is money.