“. Again — I’m no expert!”
That part I can agree it. No, its impossible to have more resolution than the pixel count provides, I speak as someone knowledgable in Computer Science, that’s just a fundamental of how digital images work. You should trust AJ Strata more than your own judgement on that point.
At most, you can argue that with sufficient pixel resolution, you can detect method of printing due to how the printing resolves on the image, but thats about it.
Sorry, sir, you are wrong on that. You can resolve repeated patterns to a higher accuracy and make use statistics to make inferences on an ensemble that can be quite surprising. BTW, I would not trust AJStrata to take out my garbage. I’ve had the misfortune of having to work with a few people who came off as he does. One was one of the world’s leading expert in his field, but he was intolerable to work with, so the company kept him almost cloistered. Another was a total f*up — but who could talk a great game but NEVER delivered. A couple of others come to mind. Ruinations every one. If they weren’t themselves incompetent they would by their bad attitude demoralize everyone around them and thus create a circle of incompetence around them, with of course, the big head himself, at the center, majestic.