Ask HN: What is the most rewarding thing you learnt/ recently?

I mentor school kids, trying to get them to build interesting stuff and choose engineering as a career. They haven’t been to school in basically a year, they’re stuck at home missing their friends, everything’s upside down, but despite that - they still want to go the extra mile, show up to their Zoom calls, and work together to build a cool robot. It’s rewarding to know that people don’t give up, despite such a difficult situation.

I opened my first brokerage account and bought my first stock this week! Technically I have lots of investments already through my 401 K at my job, but it certainly feels different to have my finger on the "trade" button.

I got a much better handle on basic functional programming by attempting Advent of Code in Scala.

It's of absolutely no use to me in my day job, but tail recursion is its own reward.

Maybe how to culture and grow mushrooms.

I learned this recently and it’s a life changer, especially with baked beans.