Q 71 The DMG lists limits on visibility range that are dependent on local terrain. Does RAW specify if these limits represent the visual limitations of creatures themselves (as in the case of being on an open plain or the top of a hill/mountain on a clear day) or as an estimate on approximately how far a creature could see before an ambient terrain feature would break line of sight? (as is likely the case in dense forest where all the trees in all directions eventually form a visual wall)