ppl call amaterasu instant even if things look instant to the eye even the speed of light is not instant because it has a calculated speed everything has a speed and no one knows the speed of amaterasu and instant is not it (fanboys 0_o) yes amaterasu is fast and kirin is fast but if they are both cocked and ready to go to say which one is faster is impossible without the speed of amaterasu and again instant is not it unless u wanna say amaterasu is faster the tne speed of light and since a doged it that is not the case things tat fast cant be doged