Optical illusions occur due to the way our brain processes information. Here are some key reasons:
1. The Brain Fills in Gaps
Our visual system fills in missing details based on experience, leading to illusions.
2. Contrast and Shadows Affect Perception
Shadows and surrounding colors influence how we perceive shades and depth.
3. Motion and Perspective Tricks
Our brain uses motion cues and depth perception, which can sometimes be misleading.