Reinventing the Pencil Sharpener [video]
youtube.com
youtube.com
https://www.nytimes.com/2012/07/29/books/review/how-to-sharp...
Although now for all technical blog posts to HN I feel I should respond: such a weird way of flexing "I have a 6 figure tech job".
If you work a good 9-5 you've got several hours each day to tinker. Also, nothing in that video was 100k+. A nice watchmaker's lathe is ~10k. A full CNC enabled Bridgeport mill is 12k. That shop could be assembled with care for ~20k, or carelessly for ~50k. It's not nothing, but it's less than a boat. It's less than a country club membership. It's less than a few trips to Disney World.
The post says far more about your envy than anything about the video. Nothing there is out of reach of some years of hard and smart work, and if you adjust your attitude you'll likely find yourself enjoying a similar position in some years. (NB: most tools are available in very good condition at machinery auctions and re-sellers for far less than original price, and his machines are clearly well-cared-for older examples; and he mentioned some donated/loaned from a sponsor.)
Edit: augment the NB