Most people doing philosophy become aware of typographical mistakes that should be avoided. Confusing “causal” and “casual” is one of them, maybe indeed the most famous.
I’ve become aware of two ones that are new to me. For reasons I do not understand, my mac airbook leads me to type “spa” for “apa”. The other is due to the automatic correcting that computers go in for. For example, mac insists on “neurotics” for “neuroethics.” So you might get an invitation from me for a spa meeting in New Orleans in February, 2013 for neurotics.
Anyone else have new problems? Or perhaps you could remind us of some interesting old ones.