My world(Title a working process, suggestions wanted)

Amnesico. made the earth better. They cleaned us up, making everything eco friendly. No one knows how they did it or how they came up with the technology to biuld the new, improved planet earth. Amnesico. planned for this, they made this world the way it was and no one could know how. So, when every human being turned 16 years old, they were shown a tape. This tape contained the secrets of how the new world came to be. Once everyone had seen this tape, it was wiped from their memory. But what happened to the one girl that remembered?