I would like to direct you to a site where you will see how he makes use of video to explain concepts. Very low tech. but very effective. It is www.khanacademy.org a pretty rmarkable site and effort on his part. Maybe it could provide some useful ideas.
How is the programming of PI progressing. Now I am being nosey, are you a full time investor/trader or is programming your day job. How did you fare this past decade. Keep up the good work.
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