“Reality” is constructed by your brain. Here’s what that means, and why it matters.

https://www.vox.com/science-and-health/20978285/optical-illusion-science-humility-reality-polarization

“Fix your gaze on the black dot on the left side of this image. But wait! Finish reading this paragraph first. As you gaze at the left dot, try to answer this question: In what direction is the object on the right moving? Is it drifting diagonally, or is it moving up and down?”

What color are these strawberries?

Are A and B the same gray?