I still hand write a lot of code, and especially when starting out on projects or making more fundamental changes. I find it leads to better architectural solutions. My thinking has been that writing it out by hand can be slower so my brain is incentivized to think through the options and come up with more concise solutions. But maybe, as the article suggests, there are other small factors to hand-writing that lead to an improvement as well. I also use then go through the hand-written code to "execute" programs in my head and I think this also leads to higher-quality code. I encourage anyone that wants to be genuinely good at programming and software engineering to give it a try.