i'll make an analogy.
let's say i meet usain bolt at the pub, and he's very drunk.
i tell him that i could beat him in a race. i say that he might know how to race on the track, but that **** doesn't work in the street. on the street, i'm faster.
as he starts telling me i'm a moron, i suddenly dash off to the traffic lights at the corner of the block. usain stands there bewlidered. i dance about screaming "i just beat you to the traffic lights! i'm faster than usain bolt! i'm the fastest man in the world!"