Retcon 2025 is a hypothetical occasion by which the complete timeline of human historical past is retroactively altered, with no proof of the change remaining. The time period is a portmanteau of “retroactive continuity” and “2025,” the 12 months by which the occasion is predicted to happen.
The thought of Retcon 2025 relies on the idea of the multiverse, by which there are an infinite variety of parallel universes, every with its personal distinctive historical past. In keeping with this principle, Retcon 2025 shall be a cut-off date at which the timelines of all of those universes will converge, leading to a single, unified historical past.
