Optical illusions come in a multitude of forms, from mind-boggling magic eyes to astounding cognitive tricks, but my favourite has to be the world of op art. The most recent example making the rounds has been the work of Feng Dengyu, a Chinese artist who makes reality disappear with only a paintbrush in hand. The best optical illusions are the ones that unexpectedly astound us, and this wonderful artwork is no different. Demonstrating Feng's elite realism painting skills, the stunning optical illusion art has stunned people all over the globe. Patience and time turned this tree into an optical illusion from r/opticalillusions Recently shared to Reddit, the mesmerising video begins with a plain piece of paper taped to a tree stump. The magic soon begins when Feng enters the frame, painstakingly matching the tree to the background surroundings until it looks like it has simply vanished into thin air.…