Nice walk through for a use of PyO3 to make some Python code much faster. Nice to see how useful py-spy turn out to be in such scenarii as well.

This is indeed a phenomenon which I find odd. Everywhere you look, culture seems like it became homogeneous... I don't like this much, but indeed it means it's easy to be distinctive if you want to.

Note it's not about impostor syndrome, I guess lots of us think we're in this category, that doesn't make it real.
Anyway, from the management point of view this is indeed a baffling situation when you encounter someone like this. What to do? Definitely not always easy, sometimes induced by the organization as well so it would be too easy to blame on the person alone. We need to pay more attention to those and there's clearly no magical recipe to handle them.

Good advice to fight against FOMO as far as reading material is concerned... just pluck things as they pass by. There's so much content there's likely redundancy anyway, hopefully. Yeah... I'm not cured.

There are nice mechanism in the Java type system nowadays to no rely on Optional all the time. This is a good reminder of the main alternative.