I avoid thinking about the opportunity cost and predicting what to learn for maximum efficiency – that could drive anyone crazy! I mainly follow my emotions an

I avoid thinking about the opportunity cost and predicting what to learn for maximum efficiency – that could drive anyone crazy! I mainly follow my emotions and varying interests and try to convince myself that most of what I learn can be very useful, it just rests on me to find ways to use it. It helps that I'm a big fan of applying wisdom from different disciplines to find unexpected solutions to problems. I do however focus a lot on fundamental insights, the things that actually help me guide a web search in the first place. If I didn't have rooted deeply in my brain that the sample error is composed of bias, between-unit variance, and sample size, I wouldn't even know to start looking for ways to reduce between-unit variance as an economical alternative to increasing sample size.