> "need to recognize that meaningful patterns of genetic and biological variation exist in our species that are not racial." This is true.
There's an implicit assertion in that statement, that we're currently not recognizing that meaningful patterns and variation exists. But that's nonsense. We are all perfectly aware that some groups digest lactose better, some are less vulnerable to skin cancer, some drop like flies to common tropical diseases, some completely dominate long distance running competition etc.
So there's got to be some particular differences he's referring to that he thinks are papered over. He should spell out which.
Science, or you, can make up whatever definitions they wish. The question is not if a definition is "true", but what it's useful for.
Sure, you - or scientific authorities, whoever they might be - can declare that there are multiple modern human species. The question is, what are you intending to use that definition for?
That applies to other branches of the tree of life, too. There's not some objective genetic distance measure which says what's a species and what is not. It can vary widely on different parts of the tree. But it's driven by pragmatism - sensible biologists will not waste time arguing whether some mushrooms should be one species or two, if they otherwise agree on the facts.
If you can't say plainly and clearly what the purpose of your delineation is, and it's in your own part of the tree, of course people are going to have their suspicions.
I have actually changed this since the post's release.
I got annoyed that "fast" and "endreleg" have different numbers of characters (regardless of whether endreleg is nynorsk. I got a 2 in Nynorsk in school, so........)
I imagine the UV energy itself weathers surfaces like the sun does, but at different scales. It's probably not enough to matter from the lamps.
"Hot car smell" is plastics in the car releasing volatile gas from the heat and sunlight, and surfaces in general fade, peel and crack from sun exposure over time. Thought maybe something like that would happen with different exposed materials to the lamps.
I don't trust most air purifier manufacturers. They totally would add a fancy-sounding feature which sounds good, even if it has negligible effect, or even negative effect. Case in point: they're still pushing ultrasonic humidifiers.
The tiniest particles aren't necessarily the most dangerous, so even if "clumping" worked as advertised, it wouldn't necessarily be good. Air filters are worst at filtering particles at about 0.3 microns, they're better at filtering smaller ones (I understand it has something to do with brownian motion). I wouldn't be at all surprised if a similar thing affected our biological "filters". Either way, if you have a filter, you don't need UV to clean air. Just push more air through it if you need cleaner air faster.
Yes, this is a common dilemma in air sterilization. Far UV-C isn't as nasty for skin, but it produces ozone, and ozone is nasty and really bad for your respiratory health.
> induced ozone levels of less than 10 ppb, and much less in moderately or well-ventilated rooms compliant with US far-UVC dose recommendations, and very much less in rooms compliant with international far-UVC dose standards.
i'd never heard of ozone in far-uvc nor really far-uvc. For what it's worth, i don't think it matters. the "warning" median dose for Ozone is 1ppm, 100 times more than far-UVC puts out. the "danger" is 5ppm. For ref, Chlorine is 10ppm.
253.7nm does not produce any (or less than 1ppb, which i consider the same thing for my body), and 185nm produces a lot. My warning is specifically to people who want to or need to use the lamps and also think that google isn't very good.
supposition: we don't have the material or material science that is transparent enough between 185 and 254 nanometers to induce more ozone levels than 185nm does.
> The most successful at communicating their view that they are the most successful
To who? Other humans?
It's seagull mating season where I am, and I don't speak seagull, but I'm pretty sure one of the things they're trying to convey to their fellow seagulls is that they're extremely successful.
Can't argue with it either. They're very much alive, which is the best you can be in this particular competition.
The dataset excites me more than the fairly vague conclusion that some SNPs possibly linked to traits were selected for (or hitched along to genes which were selected for). Genetic archaeology is just so much more exciting than this.
But I bet there will be a ton more of that too, thanks to the high quality dataset.
> the fairly vague conclusion that some SNPs possibly linked to traits were selected for
Interesting. I find that part of the paper the most exciting. We always knew selection would happen for valuable traits. But seeing demonstrations of it in the timelines we have is pretty important.
There's an implicit assertion in that statement, that we're currently not recognizing that meaningful patterns and variation exists. But that's nonsense. We are all perfectly aware that some groups digest lactose better, some are less vulnerable to skin cancer, some drop like flies to common tropical diseases, some completely dominate long distance running competition etc.
So there's got to be some particular differences he's referring to that he thinks are papered over. He should spell out which.
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