When should you write a book?
Tim Ferriss says that you should only write a book when the pain of not writing it is greater than the pain of writing it. When what you are writing about needs to be said and it's so urgent that you have no choice but to put pen to paper and bleed your purpose out on the page.
This probably translates to starting any new endeavor, be it a business, a podcast, a move to somewhere new, a relationship.
And I am not there.
And that's okay.