But those kinds of things also could reveal the fraud - adding a blemish where the real person doesn't have one, features that move around frame by frame in a video. The difference is things which look believable might be details which are trivially verifiably false - sure you can simulate my face and my voice, but can you accurately simulate every pore on my nose.
They can detect a persons pulse from tiny variations in head movement, I'd like to see a deepfake simulate that! And it's not about this one thing, I'm sure you could design against these tiny measurements one by one... the key is that there are a lot of them and a deepfake is going to have to simulate an enormous amount of data in order to pass what will become trivial tests for realism. This is made a much easier weapon against deepfakes when you have progressively better videos.
Here's a random example:
https://ieeexplore.ieee.org/document/6619284
They can detect a persons pulse from tiny variations in head movement, I'd like to see a deepfake simulate that! And it's not about this one thing, I'm sure you could design against these tiny measurements one by one... the key is that there are a lot of them and a deepfake is going to have to simulate an enormous amount of data in order to pass what will become trivial tests for realism. This is made a much easier weapon against deepfakes when you have progressively better videos.