If there's one thing the internet loves, it's a good optical illusion. The most recent brain-boggling viral hit is this deceptively simple purple elephant illusion that appears to transform right before our eyes, despite no video trickery involved.
From the cognitive to the physiological, optical illusions come in all forms, constantly proving that we can't always believe our eyes. Even when the science behind the visual trick is revealed, optical illusions still manage to perplex and amaze all corners of the internet.
