Further critiques on reading further: their satellite collision model only includes US satellites as of a couple years ago (there are THOUSANDS more now than there were a couple years ago!) They do not include satellite-on-satellite collisions, and they don't including the runaway effects of increasing debris after collisions.
So... I think this report is not nearly as worried as it should be about collisions.
mastodonmigration
grb090423
thepoliticalcat
gdinwiddie