Jacobo Tarrío
@jacobo.tarrio.org
I write software for fun and for profit.
Radio amateur (AE2IT and EA1ITI).
He/him/爸爸.
Radio amateur (AE2IT and EA1ITI).
He/him/爸爸.
"This new French style of expressing disagreement by throwing ingredients for pancakes should be called discrêpancy."
Esta nova tradición francesa de expresar o desacordo arrebolando ingredientes para facer filloas debería chamarse discrêpar.
France’s far-right leader hit by egg, days after flour attack
November 30, 2025 at 11:57 PM
"This new French style of expressing disagreement by throwing ingredients for pancakes should be called discrêpancy."
It's been twice already that my carefully crafted DSP function that uses arithmetic operations only turns out to be slower than the "naive" version that uses Math.sin and Math.cos and Math.atan up the wazoo.
That wasn't the case 13 years ago!
(Continues)
That wasn't the case 13 years ago!
(Continues)
November 29, 2025 at 2:38 PM
It's been twice already that my carefully crafted DSP function that uses arithmetic operations only turns out to be slower than the "naive" version that uses Math.sin and Math.cos and Math.atan up the wazoo.
That wasn't the case 13 years ago!
(Continues)
That wasn't the case 13 years ago!
(Continues)
I was just thinking back to the 90s when magazines wrote about the Information Superhighway, we didn't know what to call the @ sign in Spanish, and Nicholas Negroponte kept writing the same essay about how airlines will know you need to go to your dad's funeral so they'll jack up the prices for you.
November 28, 2025 at 7:20 PM
I was just thinking back to the 90s when magazines wrote about the Information Superhighway, we didn't know what to call the @ sign in Spanish, and Nicholas Negroponte kept writing the same essay about how airlines will know you need to go to your dad's funeral so they'll jack up the prices for you.
This is my "Big O is not a Big Deal" thread.
It is about algorithms. An algorithm consists of a sequence of steps that convert an input into an output.
Algorithms are theoretical: they are not programs, but recipes to build programs.
It is about algorithms. An algorithm consists of a sequence of steps that convert an input into an output.
Algorithms are theoretical: they are not programs, but recipes to build programs.
November 27, 2025 at 8:17 PM
This is my "Big O is not a Big Deal" thread.
It is about algorithms. An algorithm consists of a sequence of steps that convert an input into an output.
Algorithms are theoretical: they are not programs, but recipes to build programs.
It is about algorithms. An algorithm consists of a sequence of steps that convert an input into an output.
Algorithms are theoretical: they are not programs, but recipes to build programs.
Me: The way algorithms are taught is wrong.
Them: Yeah! With so many irrelevant details like...
[In unison]
Me: ...that the word "algorithm" comes from Al-Khwarizmi
Them: ... big O notation
Me: What?
Them: What?
Them: Yeah! With so many irrelevant details like...
[In unison]
Me: ...that the word "algorithm" comes from Al-Khwarizmi
Them: ... big O notation
Me: What?
Them: What?
November 27, 2025 at 6:29 PM
Me: The way algorithms are taught is wrong.
Them: Yeah! With so many irrelevant details like...
[In unison]
Me: ...that the word "algorithm" comes from Al-Khwarizmi
Them: ... big O notation
Me: What?
Them: What?
Them: Yeah! With so many irrelevant details like...
[In unison]
Me: ...that the word "algorithm" comes from Al-Khwarizmi
Them: ... big O notation
Me: What?
Them: What?
Me, generalist SWE, trying to build a PLL routine for my radio signal demodulator library, getting it consistently locked on frequency but mysteriously out of phase.
Any real DSP engineer, probably: "you got phase shift in your filter."
Me, three days later: "oops, I got phase shift in my filter."
Any real DSP engineer, probably: "you got phase shift in your filter."
Me, three days later: "oops, I got phase shift in my filter."
November 25, 2025 at 5:13 AM
Me, generalist SWE, trying to build a PLL routine for my radio signal demodulator library, getting it consistently locked on frequency but mysteriously out of phase.
Any real DSP engineer, probably: "you got phase shift in your filter."
Me, three days later: "oops, I got phase shift in my filter."
Any real DSP engineer, probably: "you got phase shift in your filter."
Me, three days later: "oops, I got phase shift in my filter."
For me, it's the fact that he built a whole fleet of space rockets and never went up to space, unlike Richard Branson and Jeff Bezos, who nearly had to be tied down so they wouldn't go in the prototypes.
November 13, 2025 at 10:58 PM
For me, it's the fact that he built a whole fleet of space rockets and never went up to space, unlike Richard Branson and Jeff Bezos, who nearly had to be tied down so they wouldn't go in the prototypes.
Two and a half years later, and everybody still appends "(formerly Twitter)" after the name.
Great rebrand, great rebrand...
Great rebrand, great rebrand...
November 12, 2025 at 5:55 PM
Two and a half years later, and everybody still appends "(formerly Twitter)" after the name.
Great rebrand, great rebrand...
Great rebrand, great rebrand...
Como sabréis, hace unos meses Trump tomó control de la policía de Washington DC y mandó tropas para "combatir el crimen", algo que muchos ciudadanos protestaron (y aún protestan porque las tropas siguen ahí).
Y Sean Dunn arrojó un bocata al pecho de un agente federal. share.google/sZyOfgoenwQd...
Y Sean Dunn arrojó un bocata al pecho de un agente federal. share.google/sZyOfgoenwQd...
From the washingtondc community on Reddit: Full video of DC sub guy
Posted by orchardsky - 1,739 votes and 209 comments
share.google
November 7, 2025 at 1:02 AM
Como sabréis, hace unos meses Trump tomó control de la policía de Washington DC y mandó tropas para "combatir el crimen", algo que muchos ciudadanos protestaron (y aún protestan porque las tropas siguen ahí).
Y Sean Dunn arrojó un bocata al pecho de un agente federal. share.google/sZyOfgoenwQd...
Y Sean Dunn arrojó un bocata al pecho de un agente federal. share.google/sZyOfgoenwQd...
That needs a sign like the flag of the USA needs a sign saying "Flag of the USA."
[P] Found a higher-quality photo; IT *IS* TAPED UP SHEETS OF PAPER!
November 5, 2025 at 11:14 PM
That needs a sign like the flag of the USA needs a sign saying "Flag of the USA."
I love that Cuomo didn't even get enough votes to be able to blame Sliwa for splitting the vote.
Mamdani cracks 1M votes, the first NYC mayor to do so since John Lindsay in 1969
November 5, 2025 at 3:56 AM
I love that Cuomo didn't even get enough votes to be able to blame Sliwa for splitting the vote.
Reposted by Jacobo Tarrío
Si lo que pasa en Madrid es de interés nacional, lo que pasa en Nueva York es de interés mundial, y por eso me extraña que la prenda española no hable de ello constantemente.
Para cubrir ese inexplicable déficit, hoy os voy a hablar de las elecciones a la alcaldía de Nueva York, que son hoy.
🧵
Para cubrir ese inexplicable déficit, hoy os voy a hablar de las elecciones a la alcaldía de Nueva York, que son hoy.
🧵
November 4, 2025 at 2:23 PM
Si lo que pasa en Madrid es de interés nacional, lo que pasa en Nueva York es de interés mundial, y por eso me extraña que la prenda española no hable de ello constantemente.
Para cubrir ese inexplicable déficit, hoy os voy a hablar de las elecciones a la alcaldía de Nueva York, que son hoy.
🧵
Para cubrir ese inexplicable déficit, hoy os voy a hablar de las elecciones a la alcaldía de Nueva York, que son hoy.
🧵
That second message is a real "I apologize, on behalf of you, to me."
Also, it is hilarious that she advocates for a middle ground between "trans people should have the same rights as any other person" and "trans people should be exterminated." Lots of middle ground in the bottom of that chasm.
Also, it is hilarious that she advocates for a middle ground between "trans people should have the same rights as any other person" and "trans people should be exterminated." Lots of middle ground in the bottom of that chasm.
November 1, 2025 at 10:42 PM
That second message is a real "I apologize, on behalf of you, to me."
Also, it is hilarious that she advocates for a middle ground between "trans people should have the same rights as any other person" and "trans people should be exterminated." Lots of middle ground in the bottom of that chasm.
Also, it is hilarious that she advocates for a middle ground between "trans people should have the same rights as any other person" and "trans people should be exterminated." Lots of middle ground in the bottom of that chasm.
If you ever need to spell anything over the phone and struggle to be understood, may I suggest using this alphabet:
Almond
Baba
Cell
Duel
Eye
Flown
Gnome
Herb
I
Jewel
Know
Loam
Moan
None
Own
Phloem
Qaddafi
Rye
Sell
Tool
Ullman
Vox
Why
Xylem
Y
Ziti
Almond
Baba
Cell
Duel
Eye
Flown
Gnome
Herb
I
Jewel
Know
Loam
Moan
None
Own
Phloem
Qaddafi
Rye
Sell
Tool
Ullman
Vox
Why
Xylem
Y
Ziti
October 26, 2025 at 8:56 PM
If you ever need to spell anything over the phone and struggle to be understood, may I suggest using this alphabet:
Almond
Baba
Cell
Duel
Eye
Flown
Gnome
Herb
I
Jewel
Know
Loam
Moan
None
Own
Phloem
Qaddafi
Rye
Sell
Tool
Ullman
Vox
Why
Xylem
Y
Ziti
Almond
Baba
Cell
Duel
Eye
Flown
Gnome
Herb
I
Jewel
Know
Loam
Moan
None
Own
Phloem
Qaddafi
Rye
Sell
Tool
Ullman
Vox
Why
Xylem
Y
Ziti
I remember a speech a Spanish politician gave in Parliament a few years ago.
The text of the speech was a real banger, but he utterly spoiled it when he delivered it with the energy of a deflating balloon.
The text of the speech was a real banger, but he utterly spoiled it when he delivered it with the energy of a deflating balloon.
In pre-modern (and early modern!) times we would have expected a politician to practice both rhetoric and stage performance—including things like voice training and gestures—because that was a huge part of the job of a politician, and nobody understood method to be antithetical to authenticity
October 25, 2025 at 11:16 PM
I remember a speech a Spanish politician gave in Parliament a few years ago.
The text of the speech was a real banger, but he utterly spoiled it when he delivered it with the energy of a deflating balloon.
The text of the speech was a real banger, but he utterly spoiled it when he delivered it with the energy of a deflating balloon.
It's Friday so I'm gonna tell you 99% of what 99% of you will ever need to know about queueing theory: the relationship between throughput, latency, and load. Or, “I have a service that gets requests and I need to know how many it must be able to handle at the same time.” 🧵 1/15
October 25, 2025 at 1:22 AM
It's Friday so I'm gonna tell you 99% of what 99% of you will ever need to know about queueing theory: the relationship between throughput, latency, and load. Or, “I have a service that gets requests and I need to know how many it must be able to handle at the same time.” 🧵 1/15
Why is Trump demolishing the White House to build a bathroom?
October 23, 2025 at 11:37 AM
Why is Trump demolishing the White House to build a bathroom?
My "current idea that keeps bouncing around in my skull because there's little else there to stop it" is building a variant of NMT-450 (1G cellphone system from the Nordic countries) on ham bands.
AFAICT it used 25kHz NBFM with in-band signaling so it might be doable with simple radios and Raspis.
AFAICT it used 25kHz NBFM with in-band signaling so it might be doable with simple radios and Raspis.
October 21, 2025 at 10:59 PM
My "current idea that keeps bouncing around in my skull because there's little else there to stop it" is building a variant of NMT-450 (1G cellphone system from the Nordic countries) on ham bands.
AFAICT it used 25kHz NBFM with in-band signaling so it might be doable with simple radios and Raspis.
AFAICT it used 25kHz NBFM with in-band signaling so it might be doable with simple radios and Raspis.
The full extent of the media training I got when I worked at Google consisted of two things:
1. Don't talk to reporters.
2. "Off the record" is not a magic phrase you can use to erase what you told a reporter.
Re www.lawfaremedia.org/article/anna...
1. Don't talk to reporters.
2. "Off the record" is not a magic phrase you can use to erase what you told a reporter.
Re www.lawfaremedia.org/article/anna...
October 20, 2025 at 11:23 PM
The full extent of the media training I got when I worked at Google consisted of two things:
1. Don't talk to reporters.
2. "Off the record" is not a magic phrase you can use to erase what you told a reporter.
Re www.lawfaremedia.org/article/anna...
1. Don't talk to reporters.
2. "Off the record" is not a magic phrase you can use to erase what you told a reporter.
Re www.lawfaremedia.org/article/anna...
Me lo apunto para el monográfico:
El CSIC ⇔ El CESID
El CSIC ⇔ El CESID
Hemos arrancado una colaboración con el CSIC (cosa que nos hace muchísima ilusión) y nos han pasado ellos esta fotografía y ahora esta pieza quizá sea el artículo mejor ilustrado que hemos publicado nunca.
Gracias a un superordenador cuántico, la entidad está en condiciones de asegurar que la letra «I» de sus siglas significa «investigación».
Puedes leer la información completa en la web: www.elmundotoday.com/2025/10/el-c...
Contenido patrocinado por @csicdivulga.bsky.social.
Puedes leer la información completa en la web: www.elmundotoday.com/2025/10/el-c...
Contenido patrocinado por @csicdivulga.bsky.social.
October 20, 2025 at 12:01 PM
Me lo apunto para el monográfico:
El CSIC ⇔ El CESID
El CSIC ⇔ El CESID
Vance continued: "Those young Republicans are fucking children, they don't know right from wrong. So unlike the Democrats; they always know exactly what they are doing with their solid moral foundations."
last i checked these young republicans were like 25 years old. but this is a classic case of infantilization to diminish the significance of the offense. www.yahoo.com/news/article...
Vance downplays group chat messages: ‘Kids do stupid things, especially young boys.’
The vice president called the texts "edgy, offensive jokes."
www.yahoo.com
October 16, 2025 at 12:06 PM
Vance continued: "Those young Republicans are fucking children, they don't know right from wrong. So unlike the Democrats; they always know exactly what they are doing with their solid moral foundations."
Esto es el Great British Bake Off, que aquí en USA ya era conocido pero se disparó en popularidad durante la pandemia.
10 concursantes hacen tartas y panes y pasteles, ellos mismos pagan los ingredientes, uno sale eliminado cada semana, y el ganador se lleva una bandeja para tartas. 1/11
10 concursantes hacen tartas y panes y pasteles, ellos mismos pagan los ingredientes, uno sale eliminado cada semana, y el ganador se lleva una bandeja para tartas. 1/11
El programa de TV británico original:
"Diez concursantes se superan a si mismos para ganar la tetera."
La adaptación americana:
"Diez concursantes se pelean por ganar diez mil dólares."
La adaptación española:
"Cada programa es una gala de tres horas con actuaciones musicales y un debate después."
"Diez concursantes se superan a si mismos para ganar la tetera."
La adaptación americana:
"Diez concursantes se pelean por ganar diez mil dólares."
La adaptación española:
"Cada programa es una gala de tres horas con actuaciones musicales y un debate después."
October 6, 2025 at 10:32 PM
Esto es el Great British Bake Off, que aquí en USA ya era conocido pero se disparó en popularidad durante la pandemia.
10 concursantes hacen tartas y panes y pasteles, ellos mismos pagan los ingredientes, uno sale eliminado cada semana, y el ganador se lleva una bandeja para tartas. 1/11
10 concursantes hacen tartas y panes y pasteles, ellos mismos pagan los ingredientes, uno sale eliminado cada semana, y el ganador se lleva una bandeja para tartas. 1/11
Reposted by Jacobo Tarrío
Headline pitch:
Out with Excel, in with Incel: the Elon Musk acolytes who want to break into the Government.
Out with Excel, in with Incel: the Elon Musk acolytes who want to break into the Government.
February 9, 2025 at 2:54 PM
Headline pitch:
Out with Excel, in with Incel: the Elon Musk acolytes who want to break into the Government.
Out with Excel, in with Incel: the Elon Musk acolytes who want to break into the Government.
It has happened at work that I do something and people are like "wow you HAVE to give a talk on this" and I'm thinking it won't take longer than 5 minutes.
But indeed I should give more talks on stuff. There really is a lot of knowledge I take for granted but most people haven't been exposed to.
But indeed I should give more talks on stuff. There really is a lot of knowledge I take for granted but most people haven't been exposed to.
One of the challenges of imparting information, is not understanding what basics the person you're teaching may have.
Things a skilled person does by rote and doesn't even acknowledge they do for a task is an aha moment for a student.
Things a skilled person does by rote and doesn't even acknowledge they do for a task is an aha moment for a student.
October 5, 2025 at 10:45 PM
It has happened at work that I do something and people are like "wow you HAVE to give a talk on this" and I'm thinking it won't take longer than 5 minutes.
But indeed I should give more talks on stuff. There really is a lot of knowledge I take for granted but most people haven't been exposed to.
But indeed I should give more talks on stuff. There really is a lot of knowledge I take for granted but most people haven't been exposed to.