Hans, > Meta reasoning from the impression of TeX I get, developed as a series > smart, but quick features lacking true generality and depth, I surmise that that's a bold statement from you, given that TeX though being more than 20 years old has still to find a opponent program that can produce even equal quality in its domain. you might argue that Don as a language designer isn't really strong but that is only a part of the story (though with most of your comments my feeling is that you think it is all that is about anything) > any attempt in developing a TeX successor by enhancing it will fail. possibly but not for the reasons you claim frank