Juan Manuel Alvarez

Code Jedi, Finance Padawan.
Lic. en Cs. de la Computación.
Magíster en Finanzas.

Baterista amateur, fanático del rock progresivo y board gamer veterano.

[Juan Manuel Alvarez @AlvarezJuanDev]

@therobotjames - No red card for Cucurella covering his mouth to talk to Messi (stupid rule, but a rule nontheless).
- No card for Oyarzabal kicking Messi on the knee.
- Not a single yellow card for Spain the entire match.

Spain still deserved to win.
But I really hope this tweet is sarcasm.

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling Datazo!

[Juan Manuel Alvarez @AlvarezJuanDev]

Encontraron una fórmula explícita para Black Scholes 😮(https://t.co/kKiTcjzLML)

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling Jajajaja! Una vez yo me fui de viaje y nadie me dijo nada. Mi esposa se fue de viaje y tenía a un montón de gente criticándola. "Con quién vas a dejar a la nena?". Con el padre! Con quién va a ser....

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling Dónde firmo?

[Juan Manuel Alvarez @AlvarezJuanDev]

@arielsbdar https://t.co/OoHwKUpDTN

[4nzn @paoloanzn]

vibecoder asks claude code to build a chat app, gets a working prototype in 20 minutes, immediately tweets "just killed slack and discord"…

brother you don't even know what a distributed system is. you don't know what database replication means. you have no idea how websocket connections behave at scale or what happens when 50k people are online at once and someone's message needs to show up in 200ms across 3 continents

slack has engineers making $300k+ who have spent a decade solving problems you don't even know exist yet. race conditions, eventual consistency, message ordering, presence systems, file storage at scale, search indexing across billions of messages

your app works on localhost with 2 connections. that's not the same thing as "killing slack" that's a college homework assignment

the prototype is maybe 0.5% of what makes these products actually work in production. the remaining 99.5% is infrastructure, reliability, edge cases, and years of iteration on problems that only surface when real humans use your thing at scale

and the worst part is the confidence. "yeah its not perfect but ai one-shotted it, just need to adjust a few things and deploy" - the few things you need to adjust IS the entire product. thats like pouring a foundation and saying you basically built a skyscraper, just need to adjust a few things

ai is genuinely incredible for building tools and prototypes. i use it every day. but there's this weird thing happening where people who have never shipped anything to real users at scale now think the hard part of software is writing the first 200 lines of code

it never was bro

[Juan Manuel Alvarez @AlvarezJuanDev]

@vwandres https://t.co/OoHwKUpDTN

[4nzn @paoloanzn]

vibecoder asks claude code to build a chat app, gets a working prototype in 20 minutes, immediately tweets "just killed slack and discord"…

brother you don't even know what a distributed system is. you don't know what database replication means. you have no idea how websocket connections behave at scale or what happens when 50k people are online at once and someone's message needs to show up in 200ms across 3 continents

slack has engineers making $300k+ who have spent a decade solving problems you don't even know exist yet. race conditions, eventual consistency, message ordering, presence systems, file storage at scale, search indexing across billions of messages

your app works on localhost with 2 connections. that's not the same thing as "killing slack" that's a college homework assignment

the prototype is maybe 0.5% of what makes these products actually work in production. the remaining 99.5% is infrastructure, reliability, edge cases, and years of iteration on problems that only surface when real humans use your thing at scale

and the worst part is the confidence. "yeah its not perfect but ai one-shotted it, just need to adjust a few things and deploy" - the few things you need to adjust IS the entire product. thats like pouring a foundation and saying you basically built a skyscraper, just need to adjust a few things

ai is genuinely incredible for building tools and prototypes. i use it every day. but there's this weird thing happening where people who have never shipped anything to real users at scale now think the hard part of software is writing the first 200 lines of code

it never was bro

[Juan Manuel Alvarez @AlvarezJuanDev]

@GeroAlbornoz Agrego el café y los monitores.

[Juan Manuel Alvarez @AlvarezJuanDev]

@ECOvaloresALYC @grok Permiten operar algoritmos también? Pregunto para mí :)

[Juan Manuel Alvarez @AlvarezJuanDev]

@natalitttta Decime que no tenes hijos sin decirme que no tenes hijos.

[Juan Manuel Alvarez @AlvarezJuanDev]

@GeroAlbornoz Si hacen análisis técnico, ya te das cuenta de que están jugando.

[Juan Manuel Alvarez @AlvarezJuanDev]

@vickyguareschi @iamdoomling ?

[Juan Manuel Alvarez @AlvarezJuanDev]

@GeroAlbornoz Seguramente. Y un poco de post-earnings-announcement drift. Muchísima gente tomando ganancia a esos niveles.

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling Yo cruzo los dedos para que a la mía le guste jugar rol :D

[Juan Manuel Alvarez @AlvarezJuanDev]

Cómo empezar en trading, narrado e ilustrado por @therobotjames

https://t.co/vul16rHdV4

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling @JuaniGallo Felicidades!!!

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling Esta no fuiste vos? https://t.co/REcbcGuuoy

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling Así y todo, sigue siendo peor el sticker en la laptop.

[Juan Manuel Alvarez @AlvarezJuanDev]

@iamdoomling https://t.co/xki7Tmi2wZ