He commented: "just because the error levels are the same for two items in an image, that doesn't prove they were added at the same time, only that the compression was the same for both items when they were added" (Zetter's words).
He stated: "just because error levels are identical between two items in an image, that doesn't prove they were added at the same time; it only indicates that the compression was equivalent for both items when they were added" (Zetter's words).