I'm pretty sure tires are mostly synthetic at this point. I wonder if the natural rubber has a different safety profile than the synthetic, if it is more biodeg

I'm pretty sure tires are mostly synthetic at this point. I wonder if the natural rubber has a different safety profile than the synthetic, if it is more biodegradable, etc. Even traditional chewing gum fits the definition of plastic, but somehow it feels like it would be safer to use than modern synthetic plastic chewing gum. No idea if that's true