Brian Peterson has figured out how to write and teach to a target audience and has developed a successful photographic career. How is that wrong?
Just because someone (or something) has some sort of "mass appeal" doesn't make that person (or it) right.
And it doesn't make it wrong.
What's wrong (in the context of this discussion) is his explanation of ISO.
You are shooting from the corners just like the earlier worker bee comments.
The worker bee analogy comes from Bryan Peterson.
Now if you cite his explanation of ISO
https://www.adorama.com/alc/0008576/article/100-in-100-Understanding-the-Effect-of-ISO-on-Exposure
and tell what's wrong with it
It can be summed up in his last sentence, "...
the use of ISO 1600 really brings on the noise!"
What brings on the noise is underexposure. One thing that's wrong with the bee analogy is that your honey doesn't taste worse because more bees were used to gather it.
It's pointless to try to explain how ISO relates to exposure to you, same as it is to explain how popularity relates to being right or wrong.
In the meantime the book remains popular.
That's completely irrelevant.
How so?
Popularity doesn't equate to being right (or as you said above) wrong.
No review has come forth to ruin the popularity of the book.
Also irrelevant.
Many claim to use it successfully to help their photography. Isn't that the purpose of the book?
Then the purpose of the book is so that some can "claim" it has helped them?
Wrong. The purpose of the book is to actually help people.
Getting a wrong and downright muddled explanation isn't helping them. Again, noise doesn't come from raising the ISO, it comes from lowering the EV.
And in what context are you telling me that?
The context is a lame and inaccurate bee analogy to explain the role of ISO in "gathering" light. ISO plays no role in "gathering" light, its role is in displaying it.
Reducing exposure to its bare elements we have:
1.) The light in the scene.
2.) The transmission of that light through the lens (of which the aperture is one part).
3.) The duration of that light.
4.) The medium that records that light (in the context of this discussion, a digital sensor).
That's not a triangle, and it doesn't include ISO.
And why are you saying, again?
You really need to work on your reading skills. The again part is because I had already written above (now emboldened and underlined for your benefit) that noise comes from underexposure and not from ISO. Clearly I could repeat this a hundred times to you and you will still not grasp it.