A question about the Epilogue. (spoilers)

Who was the Didact talking to during the game’s ending monologue?

You! (The player) it was just simple Narration.

More the question is… who was Halsey talking to in the beginning… Colonel Ackerson? Seems like it… but the timeline doesn’t fit as that guy got his head chopped off lulz

I am pretty sure he’s talking to the Forerunner council. Its a message from the past.

The YOU in his monologue is “I stand before you” followed by “attempting to save us from this fate”. Sounds like he’s talking to Forerunners. If so is this before the rings fired or now after his defeat by Chief? And if the latter is true who are the other Forerunners?