ddoonie Karma 10 Created 15 years ago Recent Submissions 1. ▲ Ask HN: Do you know any useful "Back of the Envelope Calculations"? 14 points · 15 years ago · 13 comments 2. ▲ China (US largest Creditor):"The US is Insolvent and Faces Bankruptcy..." (zerohedge.com) 3 points · 15 years ago · 1 comment All submissions on HN · View profile on HN