One thing I think this article ignores is that there's a specific tipping point at which it makes sense for a given publisher to drop paper, much like there's one for when they should adopt digital in the first place. We've seen the latter for most publishers, but we haven't yet seen the former for many at all. It'll be different for every publisher, with certain things (e.g. tech books) coming earlier than others, but it definitely exists. It'll be interesting to see where it is for different publishers, and what ends up remaining paper for a long time to come.
Another thing I just considered on the same subject: despite that the tipping point is different for each publisher, if half the publishers in the world have killed paper printing, it'll likely accelerate the other half to do the same due to the lack of economies of scale; despite that demand is down, production costs may well increase. So perhaps there's a more universal tipping point here.
Another thing I just considered on the same subject: despite that the tipping point is different for each publisher, if half the publishers in the world have killed paper printing, it'll likely accelerate the other half to do the same due to the lack of economies of scale; despite that demand is down, production costs may well increase. So perhaps there's a more universal tipping point here.