First of a short series of posts, where I introduce my switch to an operating system released in 2013, running in a computer built the same year. I can't possibly explain all the fine details of how it works, it'd require a book, but I'll try to dig out the best impressions. As explained at the end of July, I found myself at the bitter end of a long process of detaching from modern computing. Apple in particular. As a pure experiment, I installed and ran Mac OS X 10.9.5 (nicknamed 'Mavericks'...