Left: cumulative distribution function (top) and density distribution function of the cold cloud volume in the 10 presimulations of thermal instability. The vertical dotted lines mark the size of clouds resolved by 32² cells. A cloud is defined to be a contiguous region of material in cold stable thermal equilibrium. The majority of the clouds follow a Zipf's law–like distribution. A significant portion of the CNM is interconnected, forming one cohesive region through small filaments. Right: fraction of solid angle within which there is no cold neutral medium along the line of sight as a function of the radius. It follows an exponential decay ﹩{f}_{{\rm{\Omega }}}\,{\rm{(no\, cloud)}}\,\,\sim \,\exp \{-r/10\,{\rm{pc}}\}﹩. The dark red one (seed = 3) is used as the fiducial initial condition.