Light vs. Dark: How We Interpret What We See

Much of what we see is the result of complex processes happening in our brains. I had a discussion online yesterday with someone who thought that projectors might be used to darken a screen down by projecting black at it. The reality is that projectors are instruments of light. They can make things brighter, but not darker. For many people, this raises the question: How, then, do projectors show things that are black on a white screen?

The video that follows is an exploration of that question.

This is a short video that examines how our brains examine light and dark in compositions.

The full transcript of the subtitles is available at
This image is included in the video as a part of the discussion of what is white or black when dealing with projections.
This checkerboard shadow illusion is a part of the discussion in the video above.