Amazing for sure.
I did not find this article hard to believe; nor was it so-extraordinary-as-to-seem-impossible. While both reactions might have been experienced first-hand had it been shown to a pre-iPhone self, I have experienced this gradual revolution first hand—over a period of four years.
These photographs were interesting and informative. The progression of camera quality and the extrapolation of future camera quality (that I found hard not to make) was Illuminating.
I could not have drawn these conclusions had the site and the photographs not been totally credible.