Which one is more likely: All basic thermodynamics and
stat mech textbooks are wrong, including the ones that make showing that there is no lapse rate a homework problem or that do it in the actual text, or some people who have a really hard time understanding what a degree of freedom is or how to do an integral or mess with logarithmic expansions have made a mistake, the biggest of which is assuming that the DALR worked out in
climate systems is stable in the absence of a driving thermal gradient and that air is locally truly «adiabatic», instead of just having a thermal conductivity that is slower
than convection?