Why is science such a powerful tool? If we lived in a world where our senses never deceived us and we had the superhuman ability to look at thing objectively, we probably wouldn’t–well, no, we’d still need science but it would just have a different role. But part of science’s role is to try and eliminate our biases and faults in our perception. That’s why I love learning about new ways that our brain deceives us. The Guardian had this article about how images held in your memory can influence your visual perception. That means that, in some contexts at least, what you see isn’t just a product of what you’re looking at, but what you looked at before. That’s weird.

The shade illusion is another example of our perception run amok and his video is the best example of it I’ve ever seen (there will likely be an ad before the video):