“…Different proposals/formalisms emerge from time to time, which can be briefly classified into two major classes, i.e., traditional black hole thermodynamics (TBHT) [ 1 , 2 , 3 , 4 ] and extended phase space thermodynamics (EPST) [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ] for AdS black holes. In particular, Visser’s recent proposal for a holographic thermodynamics [ 16 ] (when applied to black holes) can be regarded as a further development of EPST, which also applies specifically to AdS black holes only [ 17 , 18 ].…”