66 Days of Data. Three years later... as the movie line pops up to show passage of time between previous scene and next. This is how it feels 3 years after ADS 2 cohorts, 3 years after Kaggle 30 Days of Machine Learning. In fact four years after first Python foray with Pluralsight! Chai Here is another session 66 Days of Data... Working on 5 minutes a day or more to develop practice skills, work on a project.