There is no firm consensus on how fast The Flash, the DC universe’s speediest superhero, can run. One story clocks him at 2,535 miles per hour (over 4,000km/h), for instance, which is faster than most fighter jets. While in Zack Snyder’s , he runs faster than the speed of light, 186,000 miles per – so fast, in fact, that he violates the laws of physics and
