As an Icelander I must ask about the origin of your nickname. Einhverfur means autistic in modern Icelandic. Einhverfr would mean the same if the term had existed in Old Norse.
A friend gave it to me. But ein- can mean a number of things (the one, also according to Kris Kershaw "paragon of") in Old Norse, right? As can hverf- (generally related to transitively or intransitively turning)?
I always joked that it could mean the "one who turns things around" or "the paragon of shifty people."
I assume the tie to autism comes from the idea that it's turning within oneself?
Yes, you're correct. Do you study Old Norse? When new technology or terms arrive in Iceland usually new words are created, or old words are given a new meaning (as opposed to adopting foreign words, such as telephone (sími in Icelandic, which is an archaic word meaning wire). Einhverfur is one of those, I suppose. It can also mean what you said.
You might want to visit Iceland, then. Modern Icelandic is very similar to Old Norse and to a lesser extent to Old English. The pronunciation has changed a little since the 10th century.
And there are other things to enjoy, such as outdoors thermal pools. You could strike up a conversation about the language with local people in a "hot pot" (heitur pottur), as we call the outdoors jacuzzies. :)
