Watch Wimbledon tennis champion Roger Federer practice his forehand stroke and you see hundreds of repetitions that contribute to his often breathtaking winning returns during a match. Practice past ...

Watch Wimbledon tennis champion Roger Federer practice his forehand stroke and you see hundreds of repetitions that contribute to his often breathtaking winning returns during a match. Practice past ...

The ability to take in visual cues and basically fill in the blanks allows humans to process information very quickly, but new research shows that it also can lead to misperceptions — like seeing ...

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