A Different 70%

My friend Steven Savage mentioned a book called DIY MFA, whose advice on writing he summed to me as, "Odds are you know 70% of what there is to know, but everyone knows a different 70%." To that end, the goal is to have everyone pool their 70% so they can each fill in their respective missing 30%. That includes the 70% the teacher knows (or whoever passes for the teacher) getting complemented by the 30% that any of the students have to bring.