I was casually following a @griffpatch youtube tutorial. When I accidently misplaced a block and... this optical illusion was created! It may take time to load but it is worth it. The less you blink the more effective this will work. So how does this work is you basically look in the center for a while and you will start to see other tiles narrower in the top or bottom, but when you look at it, it was just straight.
Made by @RohaantheScratcher