Что всем резко стало все равно штоле?

I've been rewatching most of the episodes to this season and I have come to the conclusion of what this season is about for the Doctor. This Season is about the victory of the Doctor and sadly the defeat of the Doctor.

The standard formula for the Doctor is jumping into a desperate situation, some of his new companions will die, ultimately he will resolve the situation but people will die.

The victory for the Doctor is when no one, even his enemies dies. This is the Doctor at his best and how I love this part of this character.

Consequently, the worst day for the Doctor is when he actually has to be the Doctor we come to expect week after week. Saving the worthy and banishing the damned. After 2,000 years and onto a new regeneration cycle, this Doctor...is tired.

The reason that he is an old man now is clear, because as Vastra said, he has lifted the veil. This is what he has looked like for a long time.

He is now after all this time nothing more then a good Dalek. Rage in his heart, a cold glaze in his eye. He is aware of it and so too is Clara. She is rotting under the Doctor. As she tries to understand him and has been in and out of his timeline she has developed the comfort ability and false assumption that she actually understands the Doctor.

She is addicted to the adventure, but the cost of that adventure isn't meant for humans. She is approximating what she perceives is the Doctor's morality. The Doctor is horrified by what he sees in Clara. This business of lying to keep people alive, of people getting hurt and Clara reveling in this as a victory on balance IS not how the Doctor thinks.

It is the fear that truly drives him. That he can't save everyone, even his enemies and the cost has added up. He is rude like a wounded animal lashes out when it is hurt and he is hurt because of the cost of this life.

Clara was his anchor, his "carer". She lets him know when he has gone too far. The fact that she is rotting and her ability to care is diminishing is tied directly too Missy. Missy knew that this would happen, thus her chuckle. She is the woman in the shop and this plan has lasted several hundred years.

As Clara has disintegrated, the Doctor's impossible girl is breaking down, another piece of misery for the Doctor to have. Another line on his wrinkled face.