Never-ending Timeline is the timeline by the God Camera, captured infinite years ago and being at the Timeline or any lower-level Never-ending Timeline. The final-level Never-ending Timeline is Imitated at The Emulator.
BeyonderGodOmnipotent called this concept The Eternity.
It is the timeline of The Emulator Inhabits all of the events and possible timelines of it, and lasts for an infinite amount of time.