If you have a doc that you need everyone to understand, you have to help them unpack it.
To be robust, the doc has to make the big idea clear even if someone spends only 15 seconds reading it.
That implies bolding of the key ideas, and devoting page space to ideas in proportion to how critical they are to elucidating and supporting the main idea.
If you're used to communicating as a physicist, you might be used to having a small, impeccably distilled payload that has implications that blossom.
But someone skimming it will completely miss the whole idea, since it's so small on the page.
Unpacking is effort!
If you want people to engage, unpack it for them!