I don't that Aspies as such like Japan more than anyone else... many things Japanese have become popular in this country in recent years. If it was just us, Miyazaki films would still be hard to get our hands on.
If I were to look for an Aspie-related connection, it would be that there's a certain appeal in the automatic assumption that extra effort will be needed to communicate if you're speaking to a person from another country... Whereas in the culture native to you people assume you will respond as expected and ostracize you when you fail. Someone from a country as different from our as Japan is would be less likely to recognize the social awkwardness of an American Aspie, I should think, until they mix with more Americans.
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"Pack up my head, I'm goin' to Paris!" - P.W.
The world loves diversity... as long as it's pretty, makes them look smart and doesn't put them out in any way.
There's the road, and the road less traveled, and then there's MY road.