In my experiments I was reducing size (fewer pixels). > If you zoom in on the original vs. the scaled down image I expect you will see a difference. I do not

In my experiments I was reducing size (fewer pixels). > If you zoom in on the original vs. the scaled down image I expect you will see a difference. I do not see a difference (other than noise) if I zoom in. I.e., I can almost always scale down to a size that is some fraction of original in which the original and the scaled down photo are indistinguishable even when zoomed in. I'll zoom in on something like the license plate on a car to judge the point at which the original and resized images are equally readable or equally un-readable.