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torotonnato

116 karma · joined March 29, 2020

Hello HN

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torotonnato··on Show HN: Be the ChatBOT
Please share the user responses. I wrote a couple of gems and I'm sure many others are funny as hell too.
torotonnato··on Tell HN: Merry Christmas
Happy xmas nerds :D
torotonnato··on Ask HN: Who needs help this holidays?
Hey! Want to chat? Email in my bio
torotonnato··on Exploding head syndrome
Thanks! Resources are much appreciated
torotonnato··on Exploding head syndrome
I tried to enter that state with intention (see my other comment). Do you have literature to recommend?
torotonnato··on Exploding head syndrome
Same as me, read my other comment
torotonnato··on Exploding head syndrome
I read "Out of body experiences" by Robert A. Monroe a long time ago, a time of gullibility and innocence. If I remember correctly he used a technique to induce that effect and I made it mine. Sometimes it worked, here is the recipe: lay on your bed with eyes closed, try to avoid any disturbances. Concentrate you attention to your inner ears and you'll hear a high frequency hiss (similar to tinnitus). Don't sleep and keep focused! After some time (I think as you are falling asleep) the volume hits a dramatic crescendo and, in my case, culminates in a devastating powerful dry explosion without a discernible source. It lasts a moment but can be really scary.

If you can keep calm without awakening, you'll be on the "other side". There is no transition. In my case, the "other side" is just me, in my bed as if I'm awake. I tried some experiments, but I felt too weak to do anything really interesting. I moved a couple of pillows, for instance, and when I woke up they were in the original position, untouched.

A really bizarre experience, I stopped trying when I finally got close to full-replication-mode on three consecutive nights. I felt very weird as if I was starting to mess with the boundary between dream and reality.

If you know more about this phenomenon let's keep in touch!

torotonnato··on How Bad Is Your Resume? – Get Your Resume Roasted by AI
I get a "Bro there is no way you have a resume that can't fit on one page." I just uploaded a PDF with two pages and I'm getting anxious already.
torotonnato··on Don't overstate 1.5 degrees C threat, new IPCC head says
It's a truly ugly definition of racism for someone, like me, that grew up with the idea that everyone has, and should have, equal dignity. I know that this is the correct and accepted definition in some circles, but I want you to reflect on what you wrote: is that definition of racism logical?
torotonnato··on Fun with Magnets
From the magnetic field. The catch is that, to reload the gun, you have to do work at least equal to the final kinetic energy of the projectile. Realistically you have to account for energy losses like friction and collision inelasticity.
torotonnato··on Fun with Magnets
But if you happen to swallow one and you are in a hurry: https://www.youtube.com/watch?v=17QKhX-8dm0
torotonnato··on The mid in fake midcentury modern
Haha speaking of barriers and Nine Inch Nails: have you heard the cover of "Head like an hole" by an improbable (but good!) Miley Cyrus? It was made for an episode of Black Mirror.
torotonnato··on Asymmetry detected in the distribution of galaxies
Disclaimer: absolutely not an expert. As I understood it, this is a test for the cosmological principle, which should be valid for every observer at every point of spacetime
torotonnato··on Computer proof ‘blows up’ centuries-old fluid equations
I would have asked how he could assert the truth of the proposition "Truth in mathematics is a social construct", since its truthfulness has to be a social construct too. (I assume that mathematics encompasses formal logic too)
torotonnato··on The death of the key change
> Key is described as choosing a certain set of notes from all the available ones.

Not exactly, take for example the Cmaj scale. You can write different melodies that "gravitate" around one of the 7 notes and that effect makes up for a particular mode of the scale of C. Even if the notes are exactly the same you can easily hear the different flavor of each mode.

The easiest way to hear the modes is to play continuously the Cmaj scale against a C drone (a long note), but each time starting from a different grade of the scale of Cmaj. Same notes, different feelings. It's unclear to me (and I think controversial even among musicians) if you should use the mode name as a qualifier for the key and usually people just say that a song is in the key of $note, but you can definitely hear the difference. In particular, it is (was?) common to modulate to the relative minor/major key to highlight a section of a song (e.g.: key changes from Cmaj to Amin, same notes).

> Is there any popular music that belongs to multiple keys because they only use the notes that are shared between them?

It's very common in jazz, a classic example: Giant steps by Coltrane. The song continuously modulates in major thirds and loops around three keys.

> Or, is there anything that doesn't belong to any key because it uses more notes than are allowed by any key?

Look up "serialism" and "atonal music".

torotonnato··on Nearly all binary searches and mergesorts are broken (2006)
Take Python for example
torotonnato··on A 23-byte “hello, world” program assembled with DEBUG.EXE in MS-DOS
Our PR dept wanted a more chill out version. Shaving a byte to the sound of ukuleles:

    db '4LOHA- W0rld' 0d 0a '$'
    xchg ax, bp
    xchg cx, dx
    int 21
    ret
torotonnato··on Crimean bridge: Explosion is 'the beginning', says Zelensky adviser
https://nitter.net/OleksiyDanilov/status/1578636142055870464...
torotonnato··on Lose weight the slow and incredibly difficult way
Ehhh too much work, suck out the nucleus with a long straw and spit it far enough
torotonnato··on Ask HN: Does Hacker News still do in person meet ups?
Anyone in Italy, possibly Milan ಠ‿ಠ
torotonnato··on Holes
"We shape clay into a pot, but it is the emptiness inside that holds whatever we want.” - Lao Tzu
torotonnato··on All poverty is energy poverty
In Italian too (lavoro)
torotonnato··on Run Stable Diffusion on Intel CPUs
7' 12" on an ancient Intel Core i5-3350P CPU @ 3.10GHz (!) using BERT BasicTokenizer, default arguments
torotonnato··on Stable Diffusion Is the Most Important AI Art Model Ever
Another example of funny subvertion, Chinese style: https://www.wikiwand.com/en/Baidu_10_Mythical_Creatures
torotonnato··on Unidentified Aerial Phenomena
Absolutely 100% agree with you on how the calibration could be done and that the methods seems sloppy. There are lots of implicit assumptions (but maybe the paper is less lacking for those people doing similar jobs).

The way I interpreted the pre-print:

- They optimized the capture for very fast moving objects (and large FOVs? Maybe using a spectrophotometer is not as straightforward as it seems)

- They are making estimates more than precise measurements, using error bars that are "good enough" for them, for the specific domain and taking into consideration the constraints given by the assumptions and the equipment. Not that I see those errors bars, though :D

- Now that I'm re-reading: ...Frames were recorded using the ser format with 14 and 16 bits... (ser is an astronomical file format)

- Paper's exposition could be better

- They are not building the JWST. They are doing something like lambertian reflectance when you are asking for global illumination. Let's wait for (the negative results of) NASA's study. I share your skepticism btw, not a believer.

Just saying that they are not using Photoshop. The paper is lacking in details though, that's uncontroversial.

Been a pleasure talking with you, have a nice day!

torotonnato··on Unidentified Aerial Phenomena
>These guys are so unscientific...

Naaaaa, this is not my field, so I assume I'm missing some crucial pieces of information (which the paper apparently lack too, I agree on that).

>A bright yellow meteor trail will saturate red and green, and then blue.

Here I assume that they can do their job, but maybe you are right. Since they are doing their observations at two "meteor stations", maybe they know what they are talking about though.

>Their entire method and conclusion all hinges on analisying the relative intensities of RGB colours of photos of very bright meteor trails.

They use a simple mathematical model, with even other obvious limitations, like considering the atmosphere homogenous, so?

Here I'm citing the calibration part (which is a bit disappointing, true :) at the end of page 4:

...The color chart in Fig. 10 allows us to evaluate the color characteristics of the Moon and check the calibration of our cameras. The Moon has a color relative to the sky background: B - G = -2.5 log (1.7 / 2.7) = 0.5. We take into account the color correction in the Jhonson B - V system according to [x] due to Rayleigh scattering equal to 0.14 magnitude. Let’s get the estimate B - V of the Moon: B - V = 0.50 + 0.60 - 0.14 = 0.96. The actual color of the Moon is B - V = 0.91 according to [1] and differs from our estimate by 0.05 magnitudes within the photometric error. In Figure 9 we can see a local feature (water tower). The color diagram of the tower in Fig. 12 gives a distance estimate of 0 ± 1 km. The actual distance is about 300 meters. Thus, colorimetric measurements confirm our estimates...

EDIT: page 4 of the UAP paper

torotonnato··on Unidentified Aerial Phenomena
I don't think they are using Photoshop, but that would be hilarious :D It's just the camera sensor's color space (Adobe RGB). Anyway, gamma correction should be problem, unless they shoot raw images and in this case the color space gets out of the equation.

I was curious, so I found another paper by the original authors and the color correction is more carefully considered, since they seem to take into account the sensor response too [0].

[0] - https://arxiv.org/pdf/2106.07403.pdf

torotonnato··on Unidentified Aerial Phenomena
That's what I thought too. Why not create a bit of distance to a possible reputational damage and spy on Russia at the same time too?

Not many data points, but fig. 4 (page 3) is interesting: a linear relation between luminosity and speed. For meteors should be, as intuitively expected, proportional to kinetic energy, hence quadratic.

Does this relation holds for missiles too?

EDIT: they are not related to NASA, it's in the second sentence of the abstract (ops)

...The Main Astronomical Observatory of NAS of Ukraine conducts an independent study of UAP also...

torotonnato··on Deep Learning Alone Isn’t Getting Us to Human-Like AI
I can easily envision that future. Anyway, any real world process is, in the end, computable by a FSM, even a self-conscious entity can't escape that assumption (if physicalism is "correct"). A bunch of lookup tables and some flip-flops, apparently, can do wonders.

Given sufficient future progress in AI [-], I can see two dangerous outcomes since one could conflate inanimate matter and life into the same computational basket: the nihilistic one, when our own sentience will be downgraded to triviality and only our codified laws will keep the human spirit philosophically afloat (but for how long?) and the specular outcome, a sort of machine-hugging movement :)

In a sense, or every life form is trivial and meaningless (including us) or everything is special and "sacred".

[-] For instance, if every test we throw at a language model strongly hints at "sentience"

torotonnato··on Ask HN: Where to find people who love to learn?
I'm replying here to both OP and you, glad to have a chat if you want to reach out:

nt-f\u+n:tAo(r[imo{@g3m1ai2l{.Nc;o'm

(discard the odd index chars)

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