The vast majority of Starlink satellites experience fairly significant atmospheric drag with their current surface area to volume ratio. Blow them up and you g

The vast majority of Starlink satellites experience fairly significant atmospheric drag with their current surface area to volume ratio. Blow them up and you get more drag so they deorbit much faster. Blocking access to space that’s about specific orbits not something like an ICBM or deep space probe which only needs a tiny window to be useful. Imagine the risk of collision is 10% per day, that’s going to quickly kill any satellite, but if you only need 10 minute window you’re down to 0.07%. Communication would be basically impossible to block. 1g of matter per square mile isn’t going to achieve much of anything, but multiplying even that trivial amount by 200 million square miles of surface area = 200,000 tons or about 500 ISS’s.