Super hard to understand. I would break in things like:

sum_of_pledged_and_to_be_confirmed > thirdy_percent_of_the_goal and about_four_weeks_to_expire

... (the naming is just a guess, I donno the rules)

sum_of_pledged_and_to_be_confirmed would be used also in 'pending_backers_reached_the_goal?' and maybe elsewhere