I'm definitely open to the possibility. I think some so-called examples of the Mandela Effect are down to faulty memory or misinformation, but others...who knows? There are certainly things (minor ones) that I staunchly remember being different in the past (for instance, I'm sure that Berenstein was BerenSTEIN with an 'E.' Is my memory wrong, or have there been some subtle changes to the particular path of reality that we're on?
It's certainly possible.
Yes, that's what I think as well.