Ask HN: What Are You Learning?

This question pops up on HN occasionally, but I am posting it here again. These days, besides working as a data scientist, I am learning game theory and curious to know what you are learning besides your job.

I've started my own company and am about to launch our product, so I'm learning marketing.

I think that I've been lucky so far because most of the traction is based on the strength of the product, and that has meant that I can sit back and gather feedback and opinions without doing anything outside of asking. However it's left me in a position where I'm unsure which steps I should be taking as I get closer and closer to launching.

If anyone has any resources that they've found particularly helpful, I'd love to read them.

I just took delivery of some practice nunchaku off eBay :-) God what you can do in one day's watching tutorials! I just taught two of my kids the basics and we haven't broken anything yet.

Other than that. Midnight Commander (always had it, never learned it), picking up some Perl, Janet, Groovy. Some GDevelop with my kids.

Theory wise I'm working within my field to study some esoteric personality theory. A bit of math here and there. Some astrology stuff also for esoteric interest. Researching microscopes to look at buying one in the future.

I’m brushing up big time on analog electronics in studying for my extra class amateur radio license.

How to play guitar. I'm in my 60s, but it's never too late to learn how to shred or shoe-gaze.

Similarly, 30+ years ago I learned how to ride a motorcycle, and rode for 30 years without crashing. It was great having a hobby that had absolutely nothing to do with computers. I recently sold the bikes and gear, it's just too risky at my age.