Everything that goes up must come down.
Small debris and unused nails will just burn in high atmosphere without any significant effect on surface. In the worst case you will just have slightly increased meteor activity within few years after wiping out starlink constellation.
Really it is overhyped concern in all. Not everything that goes up will fall down in any observable time. Navy satellite from 1964 (Transit 5B-5 if you are interested) that went rogue after a week of operation is still alive (but kind of crazy, singing senseless, but sometimes very nice songs when exposed to sun, listen them on 136.5MHz LSB modulation when it is over you at daytime), being unattended for nearly 60 years and will not fall down from his 1000km orbit in closest millenias, and will continue to amaze us singing his crazy songs in sunrays.
Only LEO satellites expirience some significant drag and lose speed noticeably.
Also, threat of space garbage to new satellites is miniscule, since it is not even 100 thousand cars on whole Earth, it is 100 thousand cars on whole earth on endless different layers. Probability of occasional unintended collision is very small, at least on current level of space expansion we have.
Everything that goes up must come down.
Small debris and unused nails will just burn in high atmosphere without any significant effect on surface. In the worst case you will just have slightly increased meteor activity within few years after wiping out starlink constellation.
Really it is overhyped concern in all. Not everything that goes up will fall down in any observable time. Navy satellite from 1964 (Transit 5B-5 if you are interested) that went rogue after a week of operation is still alive (but kind of crazy, singing senseless, but sometimes very nice songs when exposed to sun, listen them on 136.5MHz LSB modulation when it is over you at daytime), being unattended for nearly 60 years and will not fall down from his 1000km orbit in closest millenias, and will continue to amaze us singing his crazy songs in sunrays.
Only LEO satellites expirience some significant drag and loose speed noticeably.
Also, threat of space garbage to new satellites is miniscule, since it is not even 100 thousand cars on whole Earth, it is 100 thousand cars on whole earth on endless different layers. Probability of occasional unintended collision is very small, at least on current level of space expansion we have.