Perhaps that author was being pendantic, but from an information theroetic perspective it is correct that you cannot invent information with upscaling. The ups

Perhaps that author was being pendantic, but from an information theroetic perspective it is correct that you cannot invent information with upscaling. The upscaled image does not have more information than what was in the original image; you can reconstruct the upscaled image given only the information available in the original image, the output resolution dimensions, and upscaling algorithm.