Dr Khadeeja (Dr Brainist) on Instagram: "How many triangles do you really see? 👀🔺 Your eyes say triangle… but reality says none. This is the Kanizsa Triangle illusion ,a perfect example of how the brain fills in gaps based on past experience and expectations. What you see is not always what exists. Welcome to the magic (and limits) of your visual cortex 🧠✨ 🎥 Full explanation on YouTube 🔗 Link in bio #reels #video #illusion #viral #fact"