Hmmm, Think Mirror?

"Mirror-writing has intrigued and unsettled humans for centuries, and has been accorded social significance in different ways. It has been reviled as the writing the Devil’s hand, as evidence of witchcraft and, in more modern times, as a marker of mental deficiency in children (this is now fully debunked, by the way). It has amassed cultural weight as a recurrent motif in literature and cinema, favored for its evocation of a sinister yet familiar reality through the looking glass. Perhaps because of its occult associations, mirror-writing is often regarded by scientists as an anecdotal curiosity, rather than as something worthy of serious investigation; and funding bodies may tend to take the same attitude. "

https://thepsychologist.bps.org.uk/volume-33/april-2020/reflecting-mirror-writing