Lineages could claim copyright of children and their works as derivative. Entire families could claim copyright of their descendants and all works related. Each new generation resets the timer on expiration if the copyright expirations still apply.

Just pick up the fence and move it further north a few meters every year.

Tabletop RPGs. It allows me to work on creativity and problem solving skills. I can also practice improvisation when I’m running the games.

Anki is a FOSS flashcard program that is popular in language learning circles.