Deepfake. Now, that's a scary word. AI. Artificial Intelligence. Me and about a hundred million other photographers use it. Dodge and Burn. That's what they called photo manipulation about 100 yrs. ago. D & B was just raising or lowering the exposure(light and dark) of parts of the photo. Darkroom work. Oooh, darkroom. Me and everyone else did cloning with Lightroom. Kind Old School since about five yrs. ago. I was pretty good at it. Before that I could cut and paste fifty little pieces of a picture into places where they were needed. It's easy to fool the viewer if they didn't know what it looked like in the first place.
I guess I should take a shot at the question. Fifteen faces. They all look pretty centered in the frame. Same person? Fifteen changes? That would be a lot of work, but computers are fast. If I make one little change in a photo with AI, I expect there's a billion 1's & 0's whipping around.
If I should die before I wake...great,a little more sleep.