You can right-click on and download this image and load it into Photoshop or Corel Photopaint or any other image processor with an “info” tool like the eyedropper and info palette in Photoshop, and verify that the pixel readings are exactly the same for both the “A” and the “B” squares. But no matter how hard you try to make your brain “behave” and see them as the same color of gray, you cannot! Astounding!
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