english: The way you would put it to a nine-year-old is to say, "If a meteorite was coming to hit the Earth, how would you figure out if it was going to or not?"
non_english: Spôsob, akým by ste to vyložili 9-ročnému dieťaťu je: "Ak by sa k Zemi blížil meteorit, ktorý by ju mohol trafiť, ako by si zistil, či ju trafí alebo nie?"