to me, programming has always been about problem solving, not s/w in itself. I love that with more progress in computing I can solve harder challenges, faster. I'm in my 40s and am more excited than ever about my work.
This is very misleading, just look at the data:
https://en.wikipedia.org/wiki/List_of_unicorn_startup_compan...
Yes, it's different for different countries, and some EU countries are less startup friently. But countries like Norway or Estonia have ~1 unicorn per 1M people, just 50% of US (~2)
PX4 with Pixhawk FC would be much better in terms of working out of the box.
But of you use it with a random "supported" FC then still lots of debugging is needed
I tried to make a robot simulator with rapier, with a mixed sucess:
https://grgv.xyz/blog/simulator4/
The performance is great but realism of joints and motors is lacking, and not suitable realistic simulation.
i moved to 4 day work week with a small pay reduction.
I spend Fridays and some evening on learning and side projects. might earn a bit less now, but then i can be sure that my skills and knowledge will stay relevant
You need therapy. It's not a good idea to explain/justify mental health issues with some external factors. It's all in your head. The worst that can happen if you can't find a job, is that you just wait for a short bit until the economy rebounds. That's life, and it's not the reason to loose sleep.
are we discussing here "intelligence" or high IQ?
those problems sit on high IQ level for humans, and are not a good fit for testing intelligence in general.
if one claims that passing those tests is a requirement for intelligence, are they saying that humans with IQ 80 are not intelligent?