However, the drawback is that if I focus too much on one thing in a single day (e.g. spend six hours reading on a topic) I find myself to be much more mentally exhausted and have a harder time recollecting some of the intricacies of things I learned. Learning to code by reading a blog post is akin to learning to swim by watching the Olympics - you might understand the concept, but in practice things are vastly different. The learning capacities of the brain seem to be following the same pattern, where I found myself having a harder time learning new subjects if I am not actually actively making an effort to do just that - learn new subjects.