Black hole Original credit: woodgie2 What am I looking at? This black hole that is warping spacetime on a duvet is just a black cat sleeping curled up. Black cats are famous for being hard to photograph, also called ‘void’ in some online groups. More optical illusions:Mind-boggling FloorMan BunHidden ad in advertisement pageImpossible ChairsAssorted Dried BeansHow many?Dog jumping over ManhattanFlying F1 Car