There is a joke that I really don't understand. Ask for an explanation,

Sometimes, a wrong topic will make you want to get to the bottom of it, but it is actually wrong.

In my opinion, the reason why jokes are fatal is that Americans laugh first, in order to derive the laughter of China people behind them.

Think about it. What's so funny about stuffing those things into PP? So there must be a reason to write like this. One reason is what I said earlier, and another reason is that the author wants to treat this joke as a joke. Just like a joke, the person who jokes is a pig.