Human Vision :-

 

**Human Vision Operates with a 15-Second Delay: What You See Has Already Happened**

Surprisingly, our visual perception is slightly delayed. What we see at any given moment is actually a reflection of what occurred in the last 15 seconds. This delay allows the brain to create a stable and continuous view of the world by essentially "living in the past."

Rather than processing each moment in real time, the brain blends visual information from the previous 15 seconds, giving us a smoother, more coherent experience. This mechanism is similar to an app that consolidates data over time to prevent abrupt, disjointed updates.

As a result, our brain forms an average impression of our surroundings instead of registering every fleeting change. This process helps us avoid feeling overwhelmed by constant, minor adjustments in the environment, and it prevents dizziness or nausea from too much real-time sensory input.

This delay also explains why we often miss subtle changes happening right in front of us. The brain uses this system to manage a vast amount of visual information, such as shapes, colors, and motion, while coping with rapid changes due to blinking, lighting, or movement of our eyes and body.

Without this smoothing mechanism, our vision would resemble a shaky, unstable video recorded while walking with a smartphone. The brain’s ability to handle this visual "noise" and stabilize it into a steady experience is what makes our perception of the world feel fluid and consistent.