The 20-page rule: how much time should you give a devastatingly boring book?

Novelist Mark Billingham advises readers to angrily launch a book across the room after 20 non-gripping pages – but almost 40% of people will keep going right to the end.
Read more: https://www.theguardian.com/books/2021/oct/12/the-20-page-rule-how-much-time-should-you-give-a-devastatingly-boring-book?source=Snapzu