According to current theories of expertise, this shouldn’t happen. Becoming an expert in chess, for example, makes you better ...

YouTuber Michael Stevens has explained the effect by comparing it to the Ebbinghaus illusion and the Delbeouf illusion. In the former, the mind is tricked into believing that two circles of the ...

This illusion was discovered by German psychologist Herman Ebbinghaus in the 19th century. This and similar geometrical illusions have been studied by psychologists ever since. How much you are ...

For example, look at the picture below. The Ebbinghaus illusion. Hermann Ebbinghaus The two orange circles are identical, but the one on the right looks bigger. Why? We use context to figure out ...