What is trivia? Is it the same as a bad joke?

Trivial knowledge refers to trivial, complicated things or knowledge, etc., which may be interesting and are always around us in our lives, but few people pay attention to them. Just like "cold jokes" are a kind of alternative humor, cold knowledge is not only useful, but also more attractive. This knowledge may seem a bit strange, but it can increase one's knowledge, broaden one's horizons, enlighten one's thinking, and arouse a strong desire for knowledge.