InDesign did take inspiration from TeX in the layout and hyphenation algorithms, but that doesn't make them totally equivalent. Although TeX does produce very

InDesign did take inspiration from TeX in the layout and hyphenation algorithms, but that doesn't make them totally equivalent. Although TeX does produce very good output InDesign is much better at eliminating rivers as it has an idea of the shape of the glyphs. I've seen stuff on doing this in TeX, but it was a feedback loop of producing the output, analysing it, and then tweaking the input to fix the problem.