Hi Cryscat,
I think your point is well taken regarding most of the items cited. Actually, I find the movie example the thread began with the most interesting, and hardest to explain. A local aberration in spelling or teaching spelling, false impressions about the way something is spelled or pronounced based on past (internalized) ideas about the way it should be spelled, etc. are adequate explanations for most of these. Likewise, in terms of Mandela, I seem to remember articles predicting his death in prison, so I can imagine that many would have internalized that as a fact just from the articles. So, that type of thing doesn't add up to much to me. But the example given re "Shazaam", and the number of people who independently remember this non-existent movie, as well as (apparently) independently remembering the nature of its alleged case, star, plot, characters, etc., just seems a bit too much to fall within the usual ambit of human error, false impressions, mistake and etc.
It is just a bit weird. Its like a slight glitch in the woven fabric of reality, a bit like some interfering deity made a clumsy job of pruning something from existence, leaving a lot of loose ends dangling . . . .
Cordially,
S&S
PS--Actually, the whole thing makes me think of the kind of thing one used to see on the "Twilight Zone". I can almost hear Rod Serling narrating in the background.