That's like saying "metal is strong". There are huge differences among different... | Hacker News

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		nate_meurer on Sept 22, 2023 \| parent \| context \| favorite \| on: Lead poisoning causes more death, IQ loss than tho... That's like saying "metal is strong". There are huge differences among different plastics.

ClumsyPilot on Sept 22, 2023 [–]

Well, there are < 100 metals but thousands of varieties of plastic?

nate_meurer on Sept 22, 2023 | [–]

Not thousands, certainly not in common use. But yes there are many, and they have very different properties from one another, including permeability.

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