“I kept all my empty boxes of matches in order to get an estimate of how many I used in the end. I finished with exactly 140 boxes of matches that went into this project. If they all actually had exactly 300 matches in them, that equals 42,000 matches. This was significantly off from my 62,654 match estimate but many factors could have contributed to this: Maybe there aren’t exactly 300 matches in each box. Maybe I didn’t make a perfect sphere (I didn’t). Maybe matches are different sizes (they are). Still, 20,000 matches is a significant margin of error. So much for accuracy.”