Code is read more than it is written, and most of us don’t and wouldn’t write in this style. This could mean he’s much smarter than the rest of us, or he could just be a jerk doing his own thing. In either case I’ve never had a good experience working with coders who are this “clever”. Real brilliance is writing code anyone can understand that remains performant and well tested. This is more like the obfuscated Perl contest entries. I guess it’s cool that you can do it, but good sense dictates that you shouldn’t.
As to OPs endeavor to understand this style, it is an interesting learning approach, but I think reading a lot of code in many styles that are actually used by more than one guy is likely to get make you “smarter”.