If you get the "Savior" achievement, after getting blown up and crawling onto the lifeboat, you manage to reach the top, but are essentially dying. Your daughter drains your ADAM, killing you physically, but metaphysically, you still live on through her, as she has your memories and consciousness. She specifically mentions that you will "whisper over her shoulder" as well.
Technically what I said. But there is this...You were dead before the game began, so you're really supposed to die again anyway, right?