▁a ▁modern - day ▁Fish er ▁King . ▁ ▁Alan ▁Moore ' s ▁additional ▁information ▁about ▁the ▁Sw amp ▁Th ing ' s ▁orig ins ▁– ▁reve aling ▁that ▁Sw amp ▁Th ing ▁was ▁not ▁actually ▁scient ist ▁Ale c ▁Holland ▁converted ▁into ▁a ▁plant , ▁but ▁actually ▁a ▁plant ▁that ▁had ▁absor bed ▁Holland ' s ▁body ▁and ▁conscious ness ▁so ▁that ▁it ▁merely ▁thought ▁it ▁was ▁Holland ▁– ▁did ▁not ▁contradict ▁or ▁change ▁any ▁of ▁the ▁events ▁dep icted ▁in ▁the ▁character ' s ▁previous ▁appearances , ▁but ▁instead ▁changed ▁the ▁reader ' s ▁interpretation ▁of ▁them . ▁Such ▁add itions ▁and ▁re inter pret ations ▁are ▁very ▁common ▁in ▁Doctor ▁Who . ▁ ▁In ▁the ▁Star ▁Wars ▁franch ise , ▁one ▁of ▁the ▁most ▁c ited ▁plot ▁holes ▁is ▁that ▁the ▁Gal actic ▁Empire ' s ▁super we ap on , ▁the ▁Death ▁Star , ▁has ▁a ▁gl aring , ▁poor ly ▁def ended ▁weak ▁point , ▁the ▁exhaust ▁port . ▁However , ▁the ▁pre quel , ▁Star ▁Wars : ▁Rog ue ▁One , ▁presents ▁the ▁design ▁f law ▁as ▁deliber ate : ▁Gal en ▁Er so , ▁the ▁head ▁engineer ▁of ▁the ▁Death ▁Star ▁project , ▁designed ▁the ▁react ors ▁to ▁be ▁un stable , ▁thus ▁need ing ▁an ▁exhaust ▁port , ▁and ▁gave ▁the ▁plans ▁to ▁the ▁Reb el ▁Alliance ▁in ▁order ▁to ▁sab ot age ▁the ▁Empire ▁and ▁to ▁secret ly ▁show ▁the ▁Reb els ▁how ▁to ▁destroy ▁the ▁Death ▁Star . ▁ ▁Alter ation ▁Ret cons