Given a scenario, where a car is going at a speed of 150 km/hr on a straight and level road. There is an insect flying inside the car. To a person inside the car, (I really do not know how to say this, but I hope you understand), the insect is flying naturally, basically, the speed of the car does not seem to have any effect on its motion. Now consider an observer outside the car. Relative to him, the car is going at 150 km/hr and so is the person inside the car. Does this mean that the insect is also flying at 150 km/hr relative to the observer outside the car? Is this not something which seems far from reality, an insect flying at 150 km/hr?