Honestly, I'm not sure a super long adaptation is necessary for Project Hail Mary. I could see all of the major beats getting done in about 2 hours or so. There are chapters with fairly long descriptions of the experiments that could be summed up in just a few seconds of screentime. People who want to see the math can read the book. Part of making a good movie adaptation is realizing that film and print are different media and a fully faithful direct translation rarely works very well. The movie ends up bloated and overly exposition heavy, sometimes forgetting that the audience can see what is going on.

not sure if this is furthering of the joke, but this was an april fool's post

Look at the date ;)