Try memorizing a ~100 or less code. It may be an algorithm or something fundamental in computer science. You'll notice that it would take a long time to digest

Try memorizing a ~100 or less code. It may be an algorithm or something fundamental in computer science. You'll notice that it would take a long time to digest it in your head but just keep on trying (I actually memorized it in a month.). Just keep on repeating until you can recall all the code. Eventually, when you've memorized 70% of the code, you'll feel that it is simple to repeat. What I'm trying to say is that while you keep on doing something repeatedly, your brain absorbs it. Your example could be difficult and time consuming at first. But when you keep on doing it repeatedly many many times you'll realize it to be simple. That's what training is. Vim/Emacs users can understand what I mean from when they started using it the first time until using it for years.