Is it? My experience is that most of the time in practice uneven legs of four legged objects are within a small enough tolerance margin that they can be conside

Is it? My experience is that most of the time in practice uneven legs of four legged objects are within a small enough tolerance margin that they can be considered mostly equal, but floors are surprisingly less even than we initially suspect, their vertical variability being perceptually dwarfed by their overall surface.