[q-big]

> Books also don't have the secondary income stream of live performance, so they're even more at risk of major loss.

Lecture offers are secondary income streams for nonfiction authors (actually very similar to what live performances are for music).

Also, it would perfectly possible for publishing houses to find secondary income streams if they desired, but it is easier to complain about illegal copies than to find new income sources:

Just to give one possible example that could open new secondary income streams for publishing houses: why don't publishing houses sell rights for remixing or generating derived works of their published works, for example so that fanfiction becomes legal if the fanfiction author paid his fee instead of - as of today - fanfiction being in a legal grayzone?

[xani_]

> Just to give one possible example that could open new secondary income streams for publishing houses: why don't publishing houses sell rights for remixing or generating derived works of their published works, for example so that fanfiction becomes legal if the fanfiction author paid his fee instead of - as of today - fanfiction being in a legal grayzone?

Coz they'd prefer to control the supply and get all the profits while giving actual writers a pittance and having in their contracts that anything they write belongs to corporation that paid them. Similar deal with code really...