Why do we like HTML more than pdfs?
HTML rendering requires you to be connected to the internet, or setting up the images and mathJax locally. A PDF just works.
HTML obviously supports dynamic embedding, such as programs, much better but people just usually post a github.io page with the paper.
epub 'just works' locally, and it's html under the hood.
Why would html rendering require a network connection? It doesn't seem to on my machine.
> HTML rendering requires you to be connected to the internet
Not really. One can always generate a self-contained html. Both CSS and JS (if needed) can be inline.