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@affiliate@lemmy.world
- Comment on Bottom of the Ocean 2 days ago:
this guy clearly hasn’t been to the bottom of the ocean
- Comment on Bottom of the Ocean 2 days ago:
should have brought a flashlight smh
- Comment on America's Next Health Secretary Enjoying A Meal With His Future Boss and Colleagues 3 days ago:
what ever happened to jd vance? rarely see that guy these days
- Comment on Stars 1 week ago:
an even smarter and wiser person uses this opportunity to make a post on c/science_memes
- Comment on Intelligence Tests 1 week ago:
if there’s nothing that crows have and you don’t, does that not make you a superset of crows? that would be pretty cool i think
- Comment on I thought it was an easy question ... 1 week ago:
i wonder what the inverse of the letters in the english alphabet are. since it has 26 letters, we know that some letters won’t have inverses. i wonder which letters don’t have inverses. i guess it would be pretty easy to find out if you use the standard alphabet ordering and then port the alphabet over to ℤ/26ℤ, but that’s not a particularly satisfying answer.
- Comment on lab toys 1 week ago:
yeah cohomology can be particularly rough. look on the bright side though, at least you now have the tools to answer this question:
- Comment on lab toys 1 week ago:
exactly!
and i am always in favor of counting with fingers. we were given them for a reason, might as well make the most of them. counting is hard enough as it is
- Comment on lab toys 1 week ago:
i was in a group call with 6 mathematicians, and it came time to order our names in the paper we were writing. in math papers, the names are always ordered alphabetically. we had to pull up a picture of the alphabet because none of us could remember which way the letters are ordered.
- Comment on Know Nut November 1 week ago:
oh fuck i wasn’t prepared for this. but this one feels way more fair.
my gut tells me walnut
- Comment on Know Nut November 1 week ago:
this is a particularly cruel picture for day #7. this level of difficulty should be reserved for the final days of the month
- Comment on AI Elections 2 weeks ago:
i would like to know why the AI is predicting that there will be future states named Democraic, Wicconana, Nich Caroina, and Ohida.
- Comment on Would he still love me as a worm? 2 weeks ago:
written by dr. love
- Comment on This feels wrong. I love it. 2 weeks ago:
ah true. i missed the context of the original comment since it got deleted, but you’re completely right that the “1 is a scalar while i is a vector” statement is not entirely accurate.
- Comment on This feels wrong. I love it. 3 weeks ago:
after you spend enough time with complex numbers, the real numbers start to feel wrong
- Comment on This feels wrong. I love it. 3 weeks ago:
whether or not i is a scalar depends entirely on the context.
every vector space has an associated field of coefficients. in practice, this field is typically the real numbers. but you can have lots of other kinds of vector spaces as well, and they can be useful for certain things.
anyways, if you have a vector space over the complex numbers, then i is a scalar, because it is a complex number. if you have a vector space over the real numbers, then i is not a scalar, because it’s not a real number.
its worth mentioning that you can view the complex numbers as a vector space over itself. this is just a fancy way of saying that you can add complex numbers together, and you can multiply a complex number by a complex number. (one of those numbers is playing the role of scalar, and the other is playing the role of vector.) but you can also view the complex numbers as a vector space over the real numbers. and this is just a fancy way of saying that you can add complex numbers, and you can multiply a complex number by a real number.
- Comment on Sadam Hussein is everywhere 3 weeks ago:
anybody have any guesses about what the hidden word is?
- Comment on AI Summary 3 weeks ago:
maybe we just need to Think Differently about what it means for something to be a summary
- Comment on Noice 3 weeks ago:
from a topological perspective, pizzas are also pyramids and cubes. from an enlightened topological perspective, pizzas are lines and points.
- Comment on YSK that United has significantly escalated their war against basic economy passengers 3 weeks ago:
that’s what they tell you right before throwing you off the plane
- Comment on Eat lead 3 weeks ago:
the only problem with that is i’d need to change their mind again next year
- Comment on Eat lead 3 weeks ago:
unfortunately i don’t believe in uranium or numbers higher than 200, so this argument doesn’t work on me
- Comment on Striking Boeing workers reject 35% pay rise offer 3 weeks ago:
imagine if we could somehow find a way to get the gamestop/“hodl” cryptobros to organize a strike of some kind. once the ball starts rolling it might be quite some time before it stops.
- Comment on Disposable vapes to be banned in England and Wales from June 4 weeks ago:
disposable vapes come with built in lithium batteries, while (most) disposable lighters don’t. so there is a very real difference between the two. but disposal lighters are also stupidly wasteful, so it would be nice to ban those as well.
- Comment on YSK that there's a better index than the BMI to measure obesity called the Body Roundness Index 4 weeks ago:
i think you’re taking that quote out of context a bit. a few sentences later, the article says
Even physicians have weighed in on the shortcomings of B.M.I. The American Medical Association warned last year that B.M.I. is an imperfect metric that doesn’t account for racial, ethnic, age, sex and gender diversity. It can’t differentiate between individuals who carry a lot of muscle and those with fat in all the wrong places.
“Based on B.M.I., Arnold Schwarzenegger when he was a bodybuilder would have been categorized as obese and needing to lose weight,” said Dr. Wajahat Mehal, director of the Metabolic Health and Weight Loss Program at Yale University.
so the point they seem to be making is that, while BMI is controversial partly because people like to shoot the messenger, it’s also just not a reliable measurement in a medical context, even as a heuristic. the article also goes into more detail on its other shortcomings as well. the article also indicates how BMI was never intended to be used in a medical context. so, there are plenty of valid reasons for wanting a new metric.
but i do think the sentence you quoted isn’t really doing the author any favors in terms of trying to communicate the central point of the article.
- Comment on Publishers Always Innovating 4 weeks ago:
nothing beats having to click the download button twice. it’s my favorite
- Comment on Magic Mineral 5 weeks ago:
they already are
- Comment on Apple couldn’t tell fake iPhones from real ones, lost $2.5M to scammers 1 month ago:
real phones with counterfeit parts resulting from third party repairs doesn’t seem that surprising given how restrictive apple is about providing authentic repair parts. i would not be surprised if this turns out to be another case of them shooting themselves in the foot because they got too greedy.
- Comment on Reddit is making sitewide protests basically impossible 1 month ago:
i’m not yet sold on this “old vs new” thing. while i do agree that it would be better if people were more engaged/active about boycotting things and pulling out the pitchforks, my understanding is that hasn’t been the historical precedent in situations like this. the pitchfork stuff certainly did happen quite a lot in the past, but my understanding is that it was for more extreme problems than a social media company shutting down third party apps (which many people didn’t even know about). but then again, it might be hard to compare this to the company transgressions of the past.
my understanding is that frustration is building, and if things continue in this direction, they will reach a tipping point where people do actually stop using the website all together and switch to alternatives. and, this ban on protests will give the reddit executives much less information on how close things are to that tipping point. (not to mention that the ban itself will probably accelerate things.)
but i could be mistaken about this, and i’m open to changing my mind on it.
- Comment on Reddit is making sitewide protests basically impossible 1 month ago:
so many leaders are forgetting what the point of protests is. yes, protests are annoying if you’re a leader. but they’re better than the alternative. that’s the whole point.
