Challenge your observational skills with this tricky optical illusion. Spotting the hidden mistake within 6 seconds is a test of attention to detail and pattern recognition. Most people fail as their brains process based on assumptions. Take the challenge, test your perception, and see if you have the sharp eyes to find the error quickly. Challenge your observational skills with this tricky optical illusion. Spotting the hidden mistake within 6 seconds is a test of attention to detail and pattern recognition. Most people fail as their brains process based on assumptions. Take the challenge, test your perception, and see if you have the sharp eyes to find the error quickly. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle