system
Given the following post, respond as if you're commenting on Reddit:
human
[Dr Who] The Doctor seems to be the smartest and bravest of the Timelords, outwitting or outright defeating most enemies he faces. Are there actually any beings he is afraid of?

Ok, maybe he does have a certain amount of fear for every enemy he faces but I sometimes think he's just afraid they'll hurt his companions. I mean, the doctor is smart enough to conquer the universe (at least to me) if he wanted to but are there enemies he would downright avoid confrontation with?
gpt
If he *could*, the Doctor would avoid conflict with all of his enemies.  By Nine's own admission, s/he's a coward.  Any conflict s/he's been a part of save for the big one, s/he would much rather have avoided it, and is only there because there's legitimately no other choice.  Dalek fleet can't go unchecked, they'll destroy Earth and exterminate countless more worlds besides.  That volcano can't be stopped, it's a fixed point in time, face-to-be-used-in-a-few-centuries be damned.

It's not that the Doctor is unafraid.  It's just that - all too often - the Doctor is the only one capable of stopping these threats.