Edit to Redshirt's edit.
[X] Talk to Homura about the strange nature of information you have, spanning centuries and continents, and including timelines that, to your knowledge,
couldn't have happened
and even alternate realities.
-[X]As two benign examples, raise
events from the magicless world --- like concurrent world events and your prediction of upcoming earthquakes --- and time travel mechanics from Homura's Revenge.
-[X] Mutually discuss what this means for the reliability of your knowledge,
with a focus on your ability to help people.
[X] Tell her we believe we were
created through Madoka's Wish,
to help Homura.
-[X]
We wouldn't be here without either of them. Thank you.
--[X] (Jokingly.) ...Would this make them ...our mothers?
[X]
If Homura's willing, ask how and when Madoka's wished after knowing about witches and the timeloops in the past.
-[X]
If Madoka only wishes in the event of disaster, perhaps it's out of respect for Homura's effort and sacrifice?
Wordcount: 150
Changed the last line massively because I don't want to assume anything before getting Homura's side of the story. She's seen this play out more than we have.