Optical illusions offer a fun way to test observation skills. In a challenging image, a man crosses a bridge with an incomplete river beneath, creating a perceptual trick. This illusion highlights how our brains fill in missing details, often leading to overlooked mistakes. Optical illusions offer a fun way to test observation skills. In a challenging image, a man crosses a bridge with an incomplete river beneath, creating a perceptual trick. This illusion highlights how our brains fill in missing details, often leading to overlooked mistakes. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle