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Comment by michaelteter | Hacker News Reader

> I'm Googling but can't find any evidence for that.

I'm sorry, but the parent poster said they have been studying in this domain for 4+ years (including PhD research), and you present doubt because your Google searches are unconvincing?

What would it take to convince you?

You do realize that what you find on the first 10 pages of Google (or other) search engines could be junk or intentionally targeted misinformation, right?

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A careful reading will reveal that the parent poster merely said they spent 4 years doing PhD research, and during that time, also indirectly looked at things somewhat related to tire research.

I don't know how much time you've spent in academia, but when I wrote my thesis, there were a couple "indirect" things like that that I could sound knowledgeable on but really knew no more about than someone could learn in an hour of internet reading if they really tried.

A source is what it would take to convince me, not an internet commenter claiming to have googled something during their school years.

It's doubtful if you know even a basic bit of chemistry. Vulcanized rubber is a crosslinked thermoset polymer that is very difficult to break down, regardless of whether it is natural or synthetic in origin. It's going to produce roughly the same amount of microplastic per amount of tire. Lets say natural rubber lasts 2x as long, that's half as much microplastic, not 1/1000th. I get that GP is being hyperbolic, but natural rubber is incrementally better (at best) than synthetic, not revolutionarily better.

This is the internet. Doubt everything, always.

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