Very nice article. We must not loose from sight that actual learning requires some sort of effort. Even better when it's coupled to using your hands (definitely why I still take notes written by hands for some things).

In praise of property based testing. This definitely completes well the tests you write by hand.

I'm not necessarily convinced this is as much a silver bullet as it is presented here. Still there are benefits to such a structured approach for reviews in community projects.

I mostly agree with this. I'd just complete it a bit: it's probably a good idea to have at least one language where you went really deep in (emphasis on at least). A kind of strategy to aim at "T shaped skills" (or better "paint drip shaped skills").

Too often managers loose track of the level of autonomy achieved by the people around them. It's important to gauge this properly though. Too much or too little guidance and prodding can lead to frustration.

This is a welcome consequence of the CJUE ruling. Be warned, think twice before reaching for Google Analytics.