<p>Olo:
You seem to be fairly knowledgeable about both MIT and Caltech. Surely, you’ve seen atleast one of MIT’s OCW courses (I think you’ve mentioned EM Professor Walter Lewin of MIT). How would you compare the two lecturers–their styles, the content, the demos, etc. Also, would you recommend purchasing the series, given simillar content is available freely on MIT’s OCW? Please provide some input.</p>