fielsjd is right.  Your comment is ridiculous b/c (a) this is the an introductory lecture, (b) you do not know the difficulty of the problem sets or exams, which are often much more difficult than the class material, and (c) you don't know the competitveness of the grading, i.e., the "curve."  As someone who took Multivariable Calculus at a school up the street from MIT, these are all VERY IMPORTANT considerations.####[['comment', 'Other', 'NEG']]