>These are low orbits that degrade quickly without maintenance With, if I'm not mistaken, other satellites already in that general area. The Kessler effect do

>These are low orbits that degrade quickly without maintenance With, if I'm not mistaken, other satellites already in that general area. The Kessler effect doesn't have to persist for years or centuries, a single failure can easily cascade and take out most, if not all, satellites occupying that general space before the debris deorbits. Unless he's changed the figure, he intends to put 11,925 satellites into orbit for the network in low earth orbit, there are currently about 15,000 cataloged objects in that orbit (including debris). It isn't a certainty but it's still a risk.