Yes, I've experienced the same when I began running. This is equivalent to a junior developer spouting out code without thinking. It's not only the act of actually physically typing the code, but the thought process involved - juniors are not able to think before they type. I'd argue that people like in the article have written more code, have spent more thinking, debugging and maintaining code than a huge, huge majority of "modern day hackers" ever will, in 21st century. They focused at the task at hand, and became extraordinary good at it.