Mandela Effect not caused by CERN, but by time travelers visiting the past

They take great care to not alter anything significant in the past.

But even the most insignificant things no one would notice, such as stepping on an ant or even less, makes insignificant but noticeable changes over the course of time. These noticed changes have come to be known as the "Mandela Effect."

Everything is vulnerable to being changed by alterations of the past. Except our memories. Which means our memories, our minds, our consciousness, must be outside of this realm. As though its all a big simulation.

That's my 2 cents.