Umwalt
2012-04-02 23:15:15.847834+02 by Dan Lyke 0 comments
So if, like me, you checked in at XKCD yesterday and thought you got the joke... check out this XKCD discussion forum topic (lots of duplication, but lots of c aptured images) or this Reddit thread (a quick rundown of the discovered factors) to see some of how deep it apparently went:
As geary and same3chords (via googledocs) mentioned, it's using the referrer (your "ideology"), and/or geographic location, browser, ISP, and OS to determine which comic you see. Many comics also change depending on the magnification of your browser (your "glasses prescription") or your browser's window size (your "browser window size"... okay that one was straightforward).