...down the rabbit hole we go!
The Mandela Effect is a term for where a group of people all mis-remember the same detail, event or physicality. It is named after the instance in which a large group of people all shared the same memory that Nelson Mandela died prior to his actual 2013 death, usually some time in the 1980's.
The Mandela Effect is a theory of parallel universes, based in the idea that because large groups of people have similar alternative memories about past events. Advocates of the theory claim that for these collective experiences to be true, the fabric of reality must have shifted at some point in the past, and that therefore not only do parallel, inhabitable universes exist, but that we are constantly switching between them.
When I was first introduced to this idea I was only aware of definition one. I was asked how I remembered the movie Anne Rice made with Tom Cruise and Brad Pitt and I said, "Interview with a Vampire." I loved that movie back in the day and was confident in my memory. I even recalled asked someone who was 18 to buy me and my good friend tickets to the movie. So when I heard it's now INTERVIEW WITH THE VAMPIRE all I thought was, well maybe they just changed the language. Slowly more conversations progressed to other details that a large group of people remembered one way but is now reflected differently. Everything from the famous line in Star Wars, to MacDonalds, and book titles.
The Berenstain/Berenstein Bears
No single example of the Mandela Effect has generated more online buzz than that of the children's book series and animated TV show The Berenstain Bears. Quite a few people who grew up with the series, it turns out, remember the title being The Berenstein Bears, with the name ending in "ein" instead of "ain" (with some even going to go so far as to maintain that the fictional bears' surname was changed along the way to make it "less Jewish"):
Other Alternate Memories
• The countries of Sri Lanka and New Zealand being located in different places on the planet.
• The number of American states being 51 or 52.
The woman who coined the term Fiona has this on her website about this mysterious effect.
1. What is the Mandela Effect? It refers to apparently real, alternate memories of a history that doesn’t match the documented history in this reality.
2. What causes the Mandela Effect? I haven’t a clue. So far, most people seem to think it’s either a “slide” to an alternate reality, or we’re in a holodeck (see clip below) that’s experiencing a few glitches.