Aliens visit Earth, and people call the areas where they lingered "Visitation Zones." Those who enter the zones to search for high-tech items are known as stalkers.
"Professor Wang, as a researcher at the Bureau of Extraterrestrial Civilization Studies, how do you view the high-tech items found in the Visitation Zones?"
"It's like when people go on a roadside picnic on the weekend and throw their trash, such as water bottles, food wrappers, and lamb skewer sticks, onto the grass. Aliens leave their trash on Earth, too. To them, the high-tech items in the Visitation Zones are just garbage."
Earth: You ignored me yesterday. Tomorrow, you'll be out of my league.
