Einstein explains movement of UAP

You can see why a UAP has no accelerations as long as the craft moves on the geodesic. The UAP can navigate wherever it likes because geodesics are fixed and based on the curvature of spacetime. This will only work if the UAP employs a propulsion system that can construct geodesics by neatly twisting spacetime into the proper shape. We might assume that powerful computers accomplish this, and even quantum computers seem indicated. This would allow the UAP to fall freely along any desired trajectory. The UAP would not suffer any accelerations as a result of this, regardless of how it moves.