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lstoddtoday at 5:59 PM3 repliesview on HN

>that SpaceX is (via starlink) rapidly occupying large portions of

Which is utter bullshit. Quite painful to hear too. LEO is not your average american homeless stolen mart cart. Can we please rise to some more insighful level of discourse?


Replies

Sanzigtoday at 6:22 PM

Nobody is arguing that space isn't big. The argument is space is big but dynamic, and launching enough stuff up there means that over a sufficiently long time horizon, you will have a collision between uncontrolled objects. This is not a theoretical concern, it has already happened [1].

Collision risk is significantly reduced by having maneuverable spacecraft with good conjunction prediction systems in place. But fundamentally, nothing is perfect and accidents can and do happen - you set a maneuver threshold based on an expected collision probability, but it's an engineering tradeoff: "spend the fuel to maneuver out of the way of everything, no matter how remote, or accept a small collision risk?"

And of course, when you are launching thousands of satellites, you will have a few failures that will become unmaneuverable hazards. Just the way it goes, you can't realistically engineer your way to perfect reliability.

So sorry, I have to reject your claims that it's "utter bullshit." Space debris risk is a well studied field, so much so that satellite insurance companies are starting to fold those calculations into insurance premiums. So yeah, it's real, and it deserves more than a pithy dismissal.

[1] https://en.wikipedia.org/wiki/2009_satellite_collision

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jazzyjacksontoday at 6:12 PM

Lead by example, my guy, I don’t know what side of the argument you’re even on

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devindotcomtoday at 6:32 PM

insightful like your crude, substanceless objection?