In arithmetic and geometry, there is a well-known split between right-wingers who write
and left-wingers who prefer
More insidious and mysterious is the deeper split between the inliners who write
and the redoubtable subscripters who will only write
I’ve used almost exclusively the first (almost because I don’t think a paper referring to E(8,Z) could possibly be accepted), but I have no particular memory of why I started. Does anyone have an argument (in bad faith or otherwise) for either choice?