How does deepfake technology create realistic but artificial videos?

Deepfake technology is like having a super clever artist who can make someone look like they're saying or doing something they never actually did.

Imagine you have a video of your friend, and you want to make it look like they’re talking to a robot. Deepfake uses computer tricks to move their mouth and face just right, as if they were really speaking to the robot. It's like when you use a photo editor on your phone to change your background, but instead of changing the background, you're changing how someone looks in the video.

Deepfake uses special software that learns from lots of videos. It studies how people move their faces and mouths when they talk. Then, it can copy those movements onto another person’s face, making them say new words or do new things, even if they never did before!

It's like having a robot puppeteer behind the scenes, quietly moving your friend’s face to match a new voice or message. The more videos it learns from, the better it gets at making fake videos that feel real.