Another standard? (https://xkcd.com/927/ https://xkcd.com/927/). It is not like the publishing world will switch to it overnight, a lot is tied to the devices t

Another standard? (https://xkcd.com/927/ https://xkcd.com/927/). It is not like the publishing world will switch to it overnight, a lot is tied to the devices they sell, so it might be not enough motivation. It is not simpler to convert epubs into epubs with all remote content embedded and relinked? Another single file book format that used to be popular many years ago was chm, that had its own security problems. Maybe adding the possibility of executing (js) code is not the best for something that should be mostly static, and css be used to enable some level of safe interactivity.