Scientists warn deepfakes are about to become undetectable

Popular Science 

AI-generated deepfake videos depicting humans are getting more advanced, and more common, by the day. The most sophisticated tools can now produce manipulated content that is indistinguishable to the average human observer. Deepfake detectors, which use their own AI models to analyze video clips, attempt to bypass this deception by searching for hidden tells. One of those is the presence of a human pulse. In the past, AI models that detected a noticeable pulse or heart rate could confidently classify those clips as genuine.