Well, to be fair Qt Core, Gui and Widgets can du much more than ST-80; there are more platform abstractions, things like threads and unicode, more and more powe

Well, to be fair Qt Core, Gui and Widgets can du much more than ST-80; there are more platform abstractions, things like threads and unicode, more and more powerful widgets, more powerful font and 2d drawing, etc.; it's not just the same functionality with a different number of SLOC. For the people who are comfortable with even less, it's worth comparing it to the 1991 Ceres Oberon System, which has less than 14 kSLOC including the compiler and TUI.