Mesh designation

When I select the Check mark to inspect my mesh, sometimes it describes the mesh as “open polygon mesh” and sometimes as “ open double precision polygon mesh”….Can someone explain the difference?

open

the mesh has naked edges

double precision

the coordinates are stored with “double” values, 64 bit each

otherwise the precision is less - 32 bit per number

mesh

… the object typ

Here is more discussion on mesh precision and how they relate to eachother: Mesh Vertices Precision Weirdness - #7 by DanielPiker