HorizonVirtual:Rewrites And Rewriting
The nature of rewrites is explained on page 46 of Horizon: Virtual. Rewriters select their rewrites from a limited list of rewrites known. Most rewriters prepare their rewrites in advance from a datapad while some execute rewrites spontaneously without preparation.
Despite these different ways that characters use to learn or prepare their rewrites, when it comes to executing them, the rewrites are very much alike.
Rewrites can also be divided into eight “schools” of rewriting. These schools represent the different ways that rewrites take effect.