This grid illusion is a sure gateway to madness

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Even in an age of increasingly lavish, CGI-enhanced blockbuster films and video games, it takes surprisingly little to entertain people in 2016. All one really needs are some gray lines—horizontal, vertical, and diagonal—and a few black dots in white circles. Consider the case of San Francisco game developer Will Kerslake. His day job is working on high profile titles like Rise Of The Tomb Raider and The Urbz, but his passion seems to be grid-based optical illusions. On Sunday, he shared a truly vexing image with his Twitter followers, along with a little taunt about how crappy people’s brains are: