Worst part of updating my talk: looking up how fucking many more Starlink satellites there were than last time I gave a version of this talk. 200 more than a month ago. Fuck.
There are now 6,209 Starlinks in orbit, fully 62% of the 10,009 active satellites in orbit.
All of these "fully demisable" Starlinks are planned to burn up and deposit their metal in Earth's atmosphere. I just saw multiple 100-pound pieces of another SpaceX "fully demisable" rocket, so I'm sure it'll be just fine.
@sundogplanets the first of Starlink satellites is set to deorbit within a year apparently, and eventually these 5-year-lifespan satellites will deorbit and (hopefully?) burn up and be replaced in kind "logrotate" style...
at a rate of one every 45 to 60 *minutes*
24 hours a day, seven days a week
fair as long as Starlink wished to maintain its constellation size
Can't wait for Ozone Hole II and prairie farmers picking Elon's Space Chunks out of their fields every year before spring planting 
@sundogplanets now that is if Elon fully achieves his vision which of course he nearly always fails to do.
However it is fully expected that Starlink constellation will settle at around 12000 satellites in orbit at any given time to achieve financial stability. This still means they will be constantly deorbiting 6 to 7 satellites a month and will be launching replacements multiple times per year...indefinitely
This is a serious amount of space debris and upper atmosphere pollution to contend with.
Prof. Sam Lawler
Mark Shane Hayden
undead enby of the apocalypse
Kore Artemis (A-314) 