I can't express my love for this movie enough! At the outset it is about a woman trying to do her taxes, but quickly she gets waylaid by the multiverse. I think the movie is best seen without much other knowledge of the plot, but know that it commits fully to exploring the limits of absurdity while being completely heartwarming. Goes from making you laugh one second to then cry the next as people learn to accept themselves and each other.
Nihilism asserts that life holds no inherent meaning, but we can create our own meaning, and there is great importance of the connections we make with each other in the chaos of possibility.