How sadew this worldYou're too daft to laugh at Casper?

It seems like there's a playful or humorous context behind your question, perhaps referencing the character Casper from the cartoon. If you're implying that the world is sad or serious, it might suggest that people often miss the lighter moments in life, like the whimsicality of a friendly ghost. Embracing humor can be a way to counterbalance the sadness of the world.