Equivalence theory is like teaching Latin to high school students, it’s interesting and a good workout for the brain but it’s relevance is quickly diminishing.
And ancient Greek.
The foundational documents of Western civilization were largely written in those languages, and the loss of that learning has caused our culture to suffer, due to ignorance. It's not just narrow specialists who need to know this, which is the case nowadays, but instead most of our culture's leadership.
Some argue that one ought to teach modern languages instead, but that pretty much isn't done in American schools, either. Frequently, language study is put off for the college level, when it is usually too late to learn a language fluently without accent.
As the author of that paper points out, the theory can’t stand up to computational photography,
So what does digital art have to do with photography? Don't confuse the two. They are related, but not identical.
I recall one project "camera" that included a GPS and compass. It determined where you were when you pressed the shutter and what direction you were looking, and it did a web search for a high-quality photograph—taken by someone else—and recorded
that image to your memory card.
That isn't photography. Computational photography isn't photography, especially with the kinds of things that kids do with it these days.
and all digital cameras are computational.
Yeah? Are those computations supporting reality, in harmony with it, or are they opposed to it?
It’s only going to get worse as camera makers put more horsepower into cameras
We'll have to see. Maybe, maybe not. And once you create a camera with workstation-class computational ability, then the hipsters are going to start praising the old-school cameras of circa 2010, which did 'authentic' digital photography.
and start to innovate with lenses.
If anything, high-quality lenses strive towards greater realism, and not less. The gold standard for an expensive, well-corrected lens is the paraxial approximation, which is pretty much the simplest possible lens model with the least amount of distortion.
I enjoy harmless crackpottery as much as the next person but this intellectual catastrophe has negative consequences such as convincing the gullible to believe nonsense
Equivalence theory is nothing more than basic geometry of the kind taught for the last 2400 years. Is geometry irrelevant? Is it nonsense? Do only the gullible learn it, or is a working knowledge of geometry achieved by the intelligent and learned?
like there is no correct exposure.
Do you want lots of highlight headroom or do you want lots of clean shadow detail? You can't have both. Therefore, there is no one 'correct' exposure.
This ought to be pretty obvious if you use high ISO to shoot under low lighting conditions, or if you ever adjust image brightness in software.
But that is the way of the West now, we are mesmerized by the promise of transgressions and paradigm-shattering and blind to reality, which is why the Chinese were able to send cameras to the dark side of the moon while we were busy keeping up with the Kardashians.
The Soviets photographed the far side of the moon in 1959, nearly sixty years ago. The USA had a series of manned and unmanned probes to the moon from the late 1950s until the 1970s.
Here are the major missions launched to the Moon, from the dawn of the space age through the present day.
moon.nasa.gov
The moon is a cold, gray, lifeless rock, and so it was judged to be boring. Of course a real live human being is going to be more interesting than the moon, to most everyone except for specialists. The early space race was fueled by adventure and romance, but it faltered when it became routine, businesslike, and boring.
Some would argue that science progresses via the shattering of paradigms, although I rather think that knowledge accumulates, and instead we are "standing on the shoulders of giants". I would also argue that anyone who wants to succeed in science will need to have knowledge of geometry, and if one does have knowledge of geometry, then they will see that camera equivalence theory is simply an identity, incontrovertible as geometry's Law of Similar Triangles.