The problem for authors is accommodating all the different modes which readers may consume their media. Well-styled hypertext presented in the way the author in

The problem for authors is accommodating all the different modes which readers may consume their media. Well-styled hypertext presented in the way the author intends/imagines is never going away, there will always be a place for that and it is very important. For other use-cases... that's why we have HTML and stylesheets. The problem has been solved, mostly sort-of.