في الحقيقة كانت بسيطة جدا لدرجة انه يمكن لطالب في المرحلة الثانوية لم يتعرف على الرياضيات البحتة  ان يستوعب ما كتبه
It was so simple, in fact, that I suspect a really smart high school student, who didn't even have calculus, could understand what he wrote down.