To propagate vs. to convey

[Peter Makholm <sslug@sslug>]

Seneste draft af GPLv3 indeholder følgende definitioner:

  To "propagate" a work means to do (or cause others to do) anything
  with it that requires permission under applicable copyright law,
  except executing it on a computer or making modifications that you
  do not share. Propagation includes copying, distribution (with or
  without modification), making available to the public, and in some
  countries other activities as well.

  To "convey" a work means any kind of propagation that enables other
  parties to make or receive copies, excluding sublicensing. Mere
  interaction with a user through a computer network, with no transfer
  of a copy, is not conveying.

Det er *meget* stor betydning for ens forpligtelser ifølge GPLv3 om
man er i den ene eller anden kategori, men jeg er ikke helt sikker på
at jeg forstår forskellen.

"[E]nables other parties to make or receive copies", betyder det ikke
bare at vis jeg giver nogen en kopi, som jeg ikke har sørget for er
DRM-beskyttet så er det conveying?

Det er da absurd, men jeg kan ikke rigtigt forstå det på andre måder.

//Makholm