Ever run into Bidi?

One of the interesting acronyms that I have run into in SharePoint is Bidi.  I never really knew what it was  and frankly I put into the category of “I hope I don’t have to know.”  I mean really, there are so many things you HAVE to know in SharePoint to get anything done, can’t I get by without knowing what BiDi is?

I found out the answer is no, I don’t have to know what Bidi is … until I go to multi-lingual sites.  I stumbled across it in a blog post for IE.