Hello, I'm happy to announce that the following paper has been accepted at TUG 2020, to be held (hopefully) this July in Rochester, USA. Title: Experimenting with Typesetting Algorithms, Interactively, and in Real-Time Abstract: In general, typesetting experimentation is not a very practical thing to do. WYSIWYG typesetting systems are very reactive but do not offer highly configurable algorithms, and TeX, with its separate development / compilation / visualization phases, is not as interactive as its WYSIWYG competitors. Being able to experiment with typesetting algorithms interactively and in real-time is nevertheless desirable, for instance for demonstration purposes, or for rapid prototyping, and debugging new ideas. We present ETAP (Experimental Typesetting Algorithms Platform), a tool written to ease the typesetting experimentation process. ETAP currently provides several paragraph justification algorithms, all with many configuration options such as kerning, ligatures, flexible spaces, sloppiness, hyphenation, etc. The resulting paragraph is displayed with many visual hints as well, such as paragraph, character, and line boxes, baselines, over/underfullness hints, etc. All those parameters, along with the desired paragraph width, are adjustable interactively through a GUI, and the resulting paragraph is displayed and updated in real-time. ETAP can also be used without the GUI, as a scriptable application. In particular, it is able to generate all sorts of statistical reports or charts on the behavior of the various algorithms, for instance, the number of over/underfull boxes per paragraph width, the average compression or stretch ratio per line, whatever else you want. This allows you to quickly demonstrate or evaluate the comparative behavior or merits of the provided algorithms, or whichever you may want to add to the pool. -- Resistance is futile. You will be jazzimilated. Jazz site: http://www.didierverna.com Other sites: http://www.didierverna.info