It's a completely controlled deflection method.

Things don't 'fall' normally around small cosmic bodies. The local gravity is so low that any lateral velocity has an exaggerated effect. The behavior of objects around asteroids is counter-intuitive, if not absolutely chaotic.

The danger is being overly optimistic about how long it takes to do that.

Because of this low gravity, we B612'ers talk about 'docking with' a near Earth object and not 'landing on' one.

They're going to kill somebody before we get a controlled intersection.

The single aorta completely separates the oxygen-rich blood from the oxygen-poor blood and sends it to all parts of the body.