[sublinear]

Bullets are so underrated as a tool. Perhaps because writing them clearly and concisely can be a lot of effort, but that's the point. You have to reduce the reader's cognitive load to get a response.

The format you described is what I use for emails and messages.

Bullet trees are what I use for everything else. I can spend like an hour on a good bullet tree, but I am rarely misunderstood or ignored.