There is no existing kinetic solution for the entirely novel concept of Starlink sized mega constellations in LEO. (actually near "very" LEO which is a significant factor)
Take out 10, oh that's nice, we have 10,000 more currently in orbit.
Oh, you took out 120 Starlink sats somehow, that's how many we launch per month.
Maybe a nuke with chaff? That could create a dead spot that orbits around the world every 90 minutes? Still, not a killer solution, right? Please, anyone feel free to correct me.
However, a network engineer could be hungover/bribed/comprimised and push a bad BGP route... that would take down an entire mega constellation network for a bit.
[0] https://en.wikipedia.org/wiki/Anti-satellite_weapon
[1] https://en.wikipedia.org/wiki/ASM-135_ASAT#/media/File:An_ai...
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How could this be accomplished? Short of magically causing a coronal mass ejection of historic proportion, aimed directly at the earth so that the thermosphere greatly expanded, I do not see how this could be carried out.
Starlink is that badass. However, Musk is just embarrassing himself these days though, from first principles. I actually do feel bad for the guy.