I would like to think that I'm capable of writing maintainable code like seemingly everyone else in this thread, and I have multiple code bases that have existed for decades that have included necessary updates over time to reinforce that opinion.

I've also seen some truly unfathomable, Lovecraftian horror code in the wild that has persisted for decades.

Seeing Will Smith's character as a representative of humanity, and Sonny as a representative of LLM/GenAI in that context makes this joke absolutely hilarious.