Machining. It started with YouTube. I picked up a lot of concepts and that set my brain to recognize these tools. Then I randomly bought a milling supply company basically for almost nothing while shopping for interesting deals.

Well, now I have multiple tons of milling tooling and so obviously I need a 3-ton milling machine. Looking at an older CNC mill.

So that’s one skill. Another is automotive repair. My skill level is high enough to do engine replacement. Just bought a car lift today to make everything easier. This does intersect with other skills - I use oscilloscope for automotive troubleshooting, which is not far from software engineering and electronics. This led me to almost opening a mobile A/C repair business. I acquired most of the equipment I needed and got certified for federal licenses. This got delayed because of the machine shop company that fell into my lap. That’s just a much bigger opportunity.

I can credit YouTube for introducing me to many interesting skills and hobbies.

Competitive dancing. I have been a good dancer since 16 years of age, but then I studied with world championship teams. At that point, the dance is a tightly choreographed athletic activity. I was going to start competing this year, but that will have to wait a little. There are various age categories, so I can compete on equal terms with other similar couples.

Relearning math. I am not terrible at it, but I am attempting to create a curriculum that does not focus on rote memorization.