How do deepfakes work and what are their ethical implications?

Deepfakes are like fake faces on videos that trick your eyes into thinking someone is saying something they're not.

Imagine you have a puppet, you move its strings, and it does whatever you want. Deepfakes work kind of like that puppet, but with computers. They use photos or videos of a person’s face, then let the computer learn how their face moves when they talk or smile. Once it learns that, it can put those movements onto another video, making it look like someone else is speaking, even if they're not.

Think of it like drawing with crayons: you start with a picture of the person’s face, and then you color in their mouth moving as if they’re talking. The computer does this very cleverly, almost like it has a secret helper who knows all the tricks.

Deepfakes can be used to fool people, which is why they matter. Imagine your favorite teacher saying something silly on video, and everyone laughs, but it wasn’t real! That’s fun. But if someone uses deepfakes to spread lies or make bad decisions, that can cause trouble. It's like having a sneaky puppet that says things you don't want people to hear.