Stuff that a rational person would be better off not knowing. For example, if I live among people of religion X, and I find out something disgusting that the religion's founder did, and whenever someone discussed the founder my face betrayed my feelings of disgust, then knowledge of the founder's misdeeds could harm me.
Stuff that a rational person would be better off not knowing.
Interesting. So, living in Soviet Russia a rational person would treat knowledge about GULAG, etc. as a basilisk? Or a rational person in Nazi Germany would actively avoid information about the Holocaust?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.