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by kragen
1398 days ago
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Yes, you can dehydrate your tissues by eating dehydrated silica gel. But when hydrated it's a Generally Recognized As Safe food additive in quantities up to 3% (5% in the EU). You can probably eat a lot more than that but it will grind up your teeth. (By the same token, someone could strangle you with a PTFE cord, a fact that has no bearing on its toxicity.) Quartz is not amorphous silica, and unlike amorphous silica, it's carcinogenic if you inhale it. You don't get nanometer-sized structural changes in teflon by scraping it off your skillet with a spatula. You're being ridiculous. I'm interested to hear what response you get from biologists when you propose to them that natural selection might be inoperative in the split-leaf philodendron. I imagine they'll wish they had a PTFE cord handy. |
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Crystalline silica is still silica.
> You don't get nanometer-sized structural changes in teflon by scraping it off your skillet with a spatula. You're being ridiculous.
The words of someone who has not spent time analyzing electron microscopy of fracture surfaces :) It absolutely does without any possible shred of doubt. But that's not even the point; the point is that the fine physical structure of compounds can matter in biological systems. If you accept this, that it is plainly obvious that chemical inertness of a compounds is an obviously insufficent condition for safety.
> I'm interested to hear what response you get from biologists when you propose to them that natural selection might be inoperative in the split-leaf philodendron. I imagine they'll wish they had a PTFE cord handy.
If you spend a lot of time around people with science PhDs, you will quickly learn that most of us are keenly aware of how little we actually know and how much of it is guessing. Murdering people over disagreements is the domain of religions, not science. Sadly for many these two are interchangable.