Space is much bigger than the ground of earth. So 30k in a larger volume than the ground.
There are over 1.4 billion vehicles on just a small fraction of the earth.
There is a long way to go before traffic in space is a serious concern.
There are over 1.4 billion vehicles on just a small fraction of the earth.
There is a long way to go before traffic in space is a serious concern.
And the risk of a runaway effect is fairly unique to the orbital setting. If cars magically kept careening down the highway after a collision, constantly tumbling and shedding parts and disintegrating without losing any kinetic energy, we probably couldn’t tolerate the current density of vehicles on roads.