The only thing we can be sure about, with any technology, is that anyone who says "that can't be done" will be proved wrong.
Not, though, when it is physics that says so. There are a lot of hard limits out there.
I watched a video last night, the video having been made by someone who had access to the new iPhone at its launch. His approach was purely in respect of the camers on the device. For additional context, he says that he is a photographer who seems to use the smartphone almost exclusively - ass in that's his job. He was something of an evangelist for the product, and, hey, why the hell not? If he is addressing a market which prefers this form of taking snaps, then let him at it. It is an expensive consumer electronic item, so someone who can test it to its limits is performing a service.
He loved it, mainly, I think, because of he growth of additional products within that field, and its increasing exposure to existing standards and tools.
What was striking was that at no stage did he mention the lenses. From the point of view of optics, that is where you would hope (at least in my case) to see developments in the field of optics being the differentiator for the new range, but no. The lenses were only mentioned with regard to their placement and their shape. I admit to a certain preoccupation with lenses, and I think that there are more potentials in them which could be exploited, but that's an aside. In the case of the review, they were of no import.
Almost the entire emphasis was on the manner of image capture ("tall or wide"), the ability of the camera to identify subjects, the use of the entire sensor ("tall
and wide"), and then a couple of images to show the quality. The reviewer pointed out that a selfie - one taken in what seemed to be in fine shooting conditions - contained less noise than an identical photo taken using its immediate predeccesor. Less noise, but niose, nonetheless - and in pretty friendly shooting circumstances. The things are being computational all over the place.
The big surprise, though, was one which I found odd in such a product showcase. In order to extol the virtues of the new release, he showed side-by-side comparisons of the same scene on two phones this year's offering and that of last year. The old one was shockingly bad in comparison to the new. Given the marketing practices as well as the product lifecycle of these devces, this time next year he will be doing the same thing to the new model on which you spent serious money. You will look at it afresh, and say "Good lord, what a piece of junk that old one was."
The guy was good at what he does, and I don't mean in any way to denigrate how he does it, or, indeed, what it is that he does. He is evangelising in a real marketplace. He is describing a real product, which satisfies the requirements of a huge number of people.
However, if someone managed to sell me a piece of gear at that price I would become highly angered if I were to subsequently learn that it would be deprecated in value so very drastically and so very quickly.
Genuine optical developments at the scale of a smartphone don't appear to be the aim any more. The emphasis is now on all the peripherals of workflow, and how the device can speak to existing tools and standards.
To my mind, smartphones are an entirely different direction to that chosen in the camera industry. Personally, I've compartmentalised them as such.
I really should add that the action of reaching for my smartphone is not one that I take. I know that I probably should, but I just don't. I think that maybe I should use it more often, and I am absolutely not shunning it in any deliberate way. It's just as if it hasn't sunk in yet that I have a device that is always at hand. I promise that there is no denial of it in my mind.