Do you remember the Looney Toons?
According to the theory, such memories are accounted for by something such as a time traveller (or, to blame those meddling scientists, a quantum ripple created by CERN’s Large Hedron Collider) changing history and creating sci-fi-style alternate realities. Moreover, that some of us have moved between those realities, hence remembering things that have been written out of our current timeline.
It sounds far-fetched, but it’s the claimed changes to small details, such as the spelling of well-remembered brand names and the subtle "altering" of familiar logos that has convinced believers history has been tampered with during our lifetimes.










