Uploaded December 2022 | Updated September 2026, 1 hour ago

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Experience a fascinating optical illusion and visual aftereffect in 4K.

👁️ **How to watch:**
Look directly at the red circle in the center of the spiral and keep your eyes focused on it.

After watching for a short time, look away from the screen and at your surroundings. You may notice a temporary optical motion effect.

For the best experience:
• Watch in full screen
• Select the highest available video quality (4K recommended)
• Keep your eyes focused on the center
• Watch on a larger screen if possible

The visual aftereffect is temporary and should disappear shortly after you stop watching.

🎵 Includes music for a more immersive experience.

Have fun!

⚠️ **WARNING – FLASHING / MOVING VISUAL EFFECTS**

This video contains rapidly moving patterns, strong visual effects and potentially flashing imagery.

Do not watch if you have photosensitive epilepsy or are sensitive to flashing lights, moving patterns, dizziness or motion sickness.

Stop watching immediately if you feel unwell, dizzy, disoriented or uncomfortable.

Do not watch while driving or operating machinery.


Playlist
00:00 Chapter 1
03.38 Chapter 2
07:25 Chapter 3
11:22 Chapter 4
15:19 Chapter 5
16:07 Chapter 6