FifthView
Vala
I quoted an opening in another thread, and as the novel progresses the narrator occasionally falls into what seems to be a first person omniscient POV. Not sure I've seen that before. Thinking.
I'd not thought much about first person omniscient until Sanderson mentioned it in a podcast once.
Typically, it feels like that opening you posted. The first person narrator is narrating at some distance from events that happened in the past and already knows all the details due to 20/20 hindsight.
I suppose it could be pulled off in a present sense also if the narrator happens to be an omniscient sort, like a god or godlike AI.