system
Given the following post, respond as if you're commenting on Reddit:
human
[Doctor who] What is the worst thing the doctor has done before?
gpt
I mean... the War Doctor took it upon himself to judge two entire species as guilty of crimes too numerous and terrible to list, and sentenced them both to total extinction by his hand. No chance of negotiation or salvation. Not even a ploy to save "innocents" or children. Such an act basically rewrote the entire fabric of creation and changed the destinies of every single other sapient being who had ever existed or will ever be born, as the Daleks and Time Lords had been so entrenched in the universe for so long.