My ISFj best buddy and a former ISFj boss could see what's written on the other side of a sheet. Both can read text upside down as fast as they would normal text.
Another ISFj friend can read what gets traced on the sheet below the one on which s1 has written smthng.
Is it just these three, or are there more of you out there?
Do you other types also do this?
I haven't been able to so far.