Great lecture! But aren't we supposed to make an orthogonal projection? Instead he did a projection parallel to the Y-axis because he calculates p1, p2 and p3 by taking t-values 1, 2 and 3. You can also see it on his drawing. Why does he take this projection instead of the orthogonal one? And how can e turn out to be orthogonal to p anyway?####[['lecture', 'Course_General_Feedback', 'POS'], ['orthogonal projection', 'Mathematical_Related_Concept', 'NEU']]