I didn't mean to imply this is a repeatable process. I know that I've been fortunate, and in my mind that chain of luck begins with stumbling upon the MITx cour

I didn't mean to imply this is a repeatable process. I know that I've been fortunate, and in my mind that chain of luck begins with stumbling upon the MITx courses. The OP asked about courses that impacted your life, so my story felt appropriate.