IMPORTANT!!--This could change EVERYTHING we see!-----There's a scarily good 'deepfakes' YouTube channel that's quietly growing – and it's freaking everyone out • The Register

There's a scarily good 'deepfakes' YouTube channel that's quietly growing – and it's freaking everyone out • The Register:

• Watch for yourself

"Videos “Do not believe what you see on the internet, OK?” a techie, who doctors video clips apparently using AI algorithms and puts them on YouTube, has warned.

The resulting digitally altered material ranges from a comedian doing impersonations of celebrities, with the performer's face changed to match those of the stars being lampooned, to the face of Heath Ledger's Joker superimposed over the actor's characters in other movies. 
The alterations are made using, it is claimed, deepfake neural network algorithms.

...In another clip, with the comedian Bill Hader, his face gradually transforms to match actors Al Pacino and Arnold Schwarzenegger when he performs impressions of them both during a interview with TV chat show host Conan O’Brien. 
This clip is much more impressive.

It goes to show how easy it would be to make someone convincingly say words they did not, in reality, actually speak:

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