He can most certainly see that, though he doesn't wish to acknowledge it, by any means or measure. Frankly, the idea of the Doctor being far advanced down his timeline and his...not being so? Is infuriating.

The upshot to this version of the Master, however, is that he has not suffered the cost of his long survival: the increasing madness with each defeat, and the inexorable rise of the drums. This one can still suppress it.

"Ironic. The older you get, the younger your face seems to become."