I don't exactly know how to describe it besides the title.
Launch the rocket (On the runway? I don't know if it matters) and continue like you are trying to get into orbit. Make sure you are in 2x speed. Once you get above the atmosphere warp at 25x and notice that the rocket will keep going, and going... Also notice there is an error in the dev console.
Ya gotta try and have fun while working on bugs all day, otherwise, the insanity starts to set in!