it's science my friend

"Although I can develop a capsule that can stuff huge objects into it, an arm device that can send people to the hospital by playing cards, a bamboo dragonfly that can take off when worn on the head, a belt that transforms into a strange armored person, and a Ornaments of strange giants, etc., but my friends, you know...”
After Wang Xiang heard this sentence, they all said, 'You are joking, right?Right! 'Everyone with horrified eyes.
Li Dou looked calm: "These are very scientific."