ps: it is clear that TeX is a complete typesetting language, but not a format. So TeXmacs need to be compared with some restricted set of LaTeX packages. The goals for the program is to deliver the user from the burden to be an expert to be able to compose beautiful and rich technical documents. But I would disagree that the ultimate goal of a system like TeX/LaTeX is to satisfy the 0.01% of hackers which enjoy spending their times coding in an obscure macro language (which is fun, I know, like composing documents directly writing PostScript programs). TeX was made to make possible beautiful typesetting and TeXmacs carry on this vision and philosophy, so in this sense the name is fitting.