1. While the orbits might be bunched up, the orbital surface area is bigger than the earth — and satellites are in many different orbital altitudes. So, I wanted to simplify in order to get an order of magnitude estimate.
2. The risk of an individual dying in a car crash is being compared to the risk of any satellite being hit. Of course, people die every day in car crashes and satellites don’t get hit often. The point was to give a sense of the magnitude of acceptable risk.
Because that’s what I’m struggling with — how big of a problem is this at the moment?