I don't buy the analogy. The problem with Kessler syndrome is that low earth orbit is physically crowded, you run into collisions. I don't care about the garbage. I don't care about the AI era. I've been writing code in Emacs for 20 years, I'll be writing code in Emacs in 20 years, every open source project I contribute to still looks the same because all these AI people, like the blockchain people do is just make new stuff up in their own incestuous tupperware salesmen ecosystems.
I do pity the bug bounty people who rely on goodwill in their programs given that everything with a financial incentive is vulnerable. But otherwise the great thing about digital spaces is that there is, for practical purposes, unlimited space.
Every day there's another "how do you deal with the AI-apocalypse" article, I don't just ignore it
I think by "internet" they mean search engine results pages. If you restrict yourself to short, common queries and only look at the top 10 results on the page, then the space really is very limited. If all those top 10s for common queries start to get crowded out with AI slop, then people are going to start abandoning search.