ebrso
11mo ago
In 2010, the vibe (to me at least) was that self-driving cars had effectively been developed; by 2025, substantially all the cars on the roads of American cities would be fully autonomous (without requiring a human standing at-the-ready to take over in a crisis).
So what happened? Why, at least outside Silicon Valley, is my Uber cab still driven by a human? Do technical challenges remain in developing autonomous technologies? Is regulation / liability the major obstacle to adoption?
Does anyone have thoughts about the potential link between childhood fluoride exposure and lower IQ? Alternatively, links to reasonable discussion?
In particular, I'm narrowly interested in what the science says about (1) whether fluoride exposure at levels to which Americans were occasionally exposed causes IQ decreases and (2) if so, what kinds of threshold effects might exist.
For what it's worth, I (along with many of my friends) took daily 1 mg fluoride tablets (supplements) as a kid on the recommendation of our pediatrician, and I have mild dental fluorosis to show for it (although I've never had a cavity in my life). The idea that this may also have cost me a few IQ points is distressing.
https://www.nytimes.com/2025/01/08/health/fluoride-children-iq.html
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