I've spent the greater part of the past 2 days fooling around with Python-based back-testers. Specifically, I was playing with the Quantopian Zipline tool and this really powerful library called fastquant. The development work was frustrating as I had to debug the code from other developers while resolving Python versioning issues on my own PC. I am having second thoughts of being my own CTO if I incorporate later this year. After working for a day, I don't have a full-fledged article for a larger readership from Dr. Wealth, but I can share what I am experimenting with on this blog. One of the questions that repeatedly gets asked by my students is when can they exit their investments. As I focus on dividend yields and retirement planning, I don't have a straight-forward answer as I like to hold onto my investments as long as possible. But times change. We're entering the Interactive Brokers era...