Finding the angle of repose, that easy place where story flows
is no easy task.
First, pour your heart out on the page
until a pile forms— sufficient text for a memoir, say.
(Example: if the memoir has 360 pages, write M=360)
Using a life span and brutal honesty, measure the amount of truth versus myth you have created, and divide M by half (most probably).
M ÷ 2 = 180
Edit and rewrite to create that desired book-length document.
Remember, the steeper the slope the more likely the pile is to slough off, slipping until…eventually we find that angle
where the story stands and the truth prevails.