mark_something

8 ms·

1.
by mark_something 6d ago
IME, when words like this become common, it allows people to identify them more easily, so it's a good thing to introduce such words.
2.
by mark_something 8d ago
If you're allowed to change the speed of light, you can also change the gravitational constant G to compensate since the Schwarzschild radius is r = 2GM/c^2, where M is the mass of the object.
3.
by mark_something 8d ago
I think that light coming from different parts of the lamp arrives at different times. So if the lamp turns off, you see the part closest to you go black first.
4.
by mark_something 9d ago
I think you're confusing DNA sequencing with DNA synthesis. DNA synthesis is much more expensive, around $0.07 per base pair [1], and bacteria have more than a million, so it's over $70.000. Then you just have the DNA, turning tha
5.
by mark_something 9d ago
Good point about the AI that might find ways that humans didn't think of. But that would mean that Moore's law of Mad Science only now becomes true, and the drop would be steeper. Still I think that even a super smart AI can'
6.
by mark_something 10d ago
I wonder why C and C++ are usually regarded as equally insecure. In C you need to carefully check that you free allocated memory, and that you don't use it after you free it. In C++ this is automated by using classes like std::string a
7.
by mark_something 10d ago
That law is not based on thorough data. Even a person with a sky high IQ can't destroy the world easily. You need access to stuff that is not easy to get. My guess is that developing a new lethal virus or bacteria that is very infectio
8.
by mark_something 10d ago
Another proof of how much our data is worth. But I think they make a loss on me, I can remember only a handful occasions that I bought something based on an ad I saw, which were more informative than seductive, like a monthly bike rental se
9.
by mark_something 20d ago
The reals can be ordered, just use x < y. I think you mean that if ZFC is true, we could enumerate unnameable reals (choose one with the axiom of choice, remove it, choose another one, etc.), but you could not enumerate them all. But it
10.
by mark_something 27d ago
The title says that the US government /intervened/. As the article explains that happened, but also that that intervention wasn't the only reason why TRON didn't succeed. The title should have been "Japan tried to b
11.
by mark_something 28d ago
Amazing! I was proud that my OnePlus smartwatch needs recharging only once every 5 days, but 2 years is unbelievable. The difference is partly due to the LED screen of my smartwatch, LCD is much more energy efficient.
12.
by mark_something 28d ago
On AliExpress I see things like 64 TB (no, not GB!) USB flash drives for less than 10 euro, obviously a scam. I also see less spectacular products but still good looking deals, but without a brand name so you can't search the web for r
13.
by mark_something 29d ago
There are people advocating for a new social network that is distributed and not owned by a single company. Turns out it already existed before the modern social networks!
14.
by mark_something 29d ago
True. But the article mentions that the amplitude of their circadian rhythm is higher (which tells you how much a relevant measure like the amount of melatonin or body temperature varies in a 24 hour cycle), so that is an indication of bett
15.
by mark_something 29d ago
But the article discussed here also points in that direction when it mentions the importance of people on the lookout at night. The article also mentions primitive tribes partying all night, so that is yet another direction.
16.
by mark_something 29d ago
> Most importantly, when we measured their circadian function directly, small-scale communities had much higher amplitude circadian rhythms than global north populations, which I think is why they report being happy with their sleep even
17.
by mark_something 1mo ago
Indeed: https://www.doi.gov/pressreleases/interior-announces-energy-...
18.
by mark_something 1mo ago
> “A big problem is AI is being used a lot by people who aren’t mathematicians, who don’t have a huge mathematical background and are not capable of verifying the output,” Bloom said. “They like to move fast, ask their AI to check it, it
19.
by mark_something 2mo ago
Over compression is horrible, but unrelated to this. I grew up with cassettes, but was happy to switch to CDs when I was around 18. The better the recording and playback, the closer it is to what the artist intended, and to how it would sou
20.
by mark_something 2mo ago
Thanks. The first article has more info, e.g. that those beetles are flightless. But that makes me suspect that they spend a lot of time on one tree, only pollinating that tree, which would be pointless because there is no exchange of genes
21.
by mark_something 2mo ago
I ripped music from both CDs and Internet radio (not Spotify). I remember there were definitely em dashes in those from Internet radio, but I'm not sure whether they also occurred in those from CDs — those filenames probably came from
22.
by mark_something 2mo ago
I used to have ripped music that had em dashes in the filenames. But several music players displayed a question mark for it. So I replaced them all with a hyphen.
23.
by mark_something 2mo ago
I don't think that the author has ADHD, because they used to be more attentive in the past. In the case of ADHD, it was also the case as a child. I also got the diagnosis of ADHD (inattentive type) a few months ago, in the interviews t
24.
by mark_something 2mo ago
As a hobby mathematician, I agree. I know quite a bit about rings and ideals, but I don't understand much from the article on Rees algebras. Wikipedia has a lot of articles on mathematics that are explained badly, I prefer to find info
25.
by mark_something 2mo ago
If engine A uses the results of engine B, and engine B uses the results of engine A, there is a problem :-).
26.
by mark_something 2mo ago
Indeed, Perplexity is so much more useful to me, because I usually have a question, that I can just enter and get an answer that usually is correct. And it also gives sources so I can check the answer and find more info. Try e.g. typing &qu
27.
by mark_something 2mo ago
I was more lucky, I bought a book about C64 assembler in a second hand book store with my pocket money (must have been in 1989 or 1990).
28.
by mark_something 2mo ago
I started a little later with the Commodore 128. I must have spent thousands of hours programming in Basic and assembler. I remember wanting an assembler instead of putting bytes in memory, and saw one in a supermarket when my mom took me s
29.
by mark_something 2mo ago
It doesn't even work for most instruments, nearly every instrument can sound differently depending on how you play it. A violin sounds different depending on how close the bow is to the bridge, a piano sounds different depending on whi
30.
by mark_something 2mo ago
For me glycine helps amazingly. It's an amino acid that the brain needs during sleep. I take about 5 grams in water about an hour before I go to sleep. I'm not sure how much the glycinate in magnesium glycinate has the same effect

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