5 Free Online Courses From Harvard University To Boost Your Career 0:39 - Harvard's secret 3.7 million student phenomenon 2:47 - Data wizardry method that changes everything 5:22 - Digital humanities hack bridging past and future 8:08 - Communication secret for persuasion mastery 10:55 - AI blueprint that future-proofs careers 13:40 - Why free beats expensive (next steps) https://www.youtube.com/watch?v=ssmlfH0bmi0