Thanks everyone, really enjoyed this, as usual 
For users interested in mind-mapping software, I also recommend giving Freeplane a try, which I’ve been using as a crucial tool for about seven years now. It’s a fork of Freemind which at one stage was not updating frequently.
Will definitely also look at more content from Wendell and Matt. Was particularly happy to hear about Wendell’s hands-on, pragmatic approach to both hardware and software going back to pretty-much the origins of Linux