You’re getting down-voted when this premise is the core theme of The Hydrogen Sonata!
Both Vyr Cossont and Ngaroe QiRia are so bored with their meaningless existence that they have to go out of their way to invent “life tasks” and other challenges to immerse themselves in.
Not to mention the scene where a ship mind casually crushes the spirits of Vyr by perfectly playing a piece on its first attempt that she struggled with for years!