I’m paying money to learn datascience with R via this John Hopkins course on Coursera. Hopefully I can spend about 4h a week on it. Why? I try to have a ‘T’ shaped set of competencies - some competence in a lot of areas, and deeper knowledge in some. Having some competence in many areas lets you notice where a particular skill can be very helpful in solving a problem, and either apply it yourself or bring in someone who can.
