If it recovers and grows, fine.
If it levels off, fine for awhile longer.
If it continues to deteriorate, not fine anymore.
The simplification of Mutter's analysis here doesn't do justice to the work he's done in reviewing the data and projecting numbers. Principally he's of the view that manufacturing and distribution costs are the anchor keeping the boat from sailing.
"I don't know what the new innovations might be," he writes. "The scary part is that I am afraid the publishers don't, either."