To add another nit-pick to the list, the author confuses 18K as being four times the resolution of 4K.
8K is four times the resolution of 4K. (counter-intuitively to most people as it only measures the pixels in one dimension yet the image resolution is increased in both width and height)
8K is four times the resolution of 4K. (counter-intuitively to most people as it only measures the pixels in one dimension yet the image resolution is increased in both width and height)
Diagram:
https://i.pcmag.com/imagery/articles/07toBDd6lpyucCyM0xWrcQv...