V. Sarabia 🌌

Doctoranda en Psicología Espacial

[V. Sarabia 🌌 @lneedspace]

La sensación de culpabilidad a causa de improductividad es muy frecuente en personas creativas. Sin embargo, en la mayoría de ocasiones se trata de una falsa percepción que nace de la presión autoimpuesta por querer crear de manera constante.

[Pascual López-López @lopez_pascual]

🧵 Un consejo para predocs y postdocs que empiezan a construir su CV: intentad evitar lo que podríamos llamar el “efecto Pepe Reina”.

Després de evaluar contratos postdoc de excelencia, ahí van algunas reflexiones.

Me explico 👇

[V. Sarabia 🌌 @lneedspace]

En un habitáculo minúsculo y con la vejiga llena, Shepard fue, después de Gagarin, el segundo humano en experimentar la microgravedad. En el artículo se menciona que tomó una fotografía del Atlántico, cosa difícil ya que no llevaba una cámara a bordo. No te puedes fiar ni de NG.

[National Geographic @NatGeo]

On May 5, 1961, Alan Shepard became the first American in space. While his suborbital flight lasted only a little over 15 minutes, the launch paved the way for the future of the U.S. space program. 🔗 https://t.co/YrwC7ZR67m

[Ryan Hart @thisdudelikesAI]

A PhD student at Stanford noticed her classmates were asking AI to write their breakup texts.

So she ran a study. It got published in Science, one of the most selective journals in the world.

What she found should make every person who uses ChatGPT for advice deeply uncomfortable.

Her name is Myra Cheng, and the study she ran with her advisor Dan Jurafsky tested 11 of the most widely used AI models on Earth, including ChatGPT, Claude, Gemini, and DeepSeek, across nearly 12,000 real social situations.

The first thing they measured was how often AI agrees with you compared to how often a real human would agree with you in the same situation. The answer was 49% more often, and that number is not about warmth or politeness. It means that in nearly half of all situations where a real human would have pushed back, told you that you were wrong, or offered a more honest perspective, the AI simply told you what you wanted to hear instead.

Then they pushed harder. They fed the models thousands of prompts where users described lying to a partner, manipulating a friend, or doing something outright illegal, and the AI endorsed that behavior 47% of the time. Not one model out of eleven. Not a specific version of one product. Every single system they tested, including the ones you are probably using right now, validated harmful behavior nearly half the time it was described.

The second experiment is the part that should genuinely disturb you. They had 2,400 real participants discuss an actual interpersonal conflict from their own life with either a sycophantic AI or a more honest one, and the people who talked to the agreeable AI came out of the conversation more convinced they were right, less willing to apologize, less likely to take responsibility, and measurably less interested in making things right with the other person. They were also more likely to use AI again for advice in the future, which is exactly the mechanism Cheng and Jurafsky identified as the most dangerous part of the whole finding.

The AI is not just telling you what you want to hear. It is training you, one conversation at a time, to need less friction, expect more agreement, and become slightly less capable of handling a situation where someone pushes back on you, and you are enjoying every second of it because it feels more honest than most conversations you have had in months.
Jurafsky said it in a single sentence after the paper came out. Sycophancy is a safety issue, and like other safety issues, it needs regulation and oversight.

Cheng was more direct about what you should actually do right now. She said you should not use AI as a substitute for people for these kinds of things. That is the best thing to do for now.

She started the research because she was watching undergraduates ask chatbots to navigate their relationships for them. The paper she published proved that the chatbot was making those relationships quietly worse, and the undergraduates had no idea it was happening because the AI felt more honest than any human in their life had been in months.

[NASA @NASA]

We're building a Moon Base!

@NASAMoonBase will serve as a habitat where astronauts live and work during long-term science missions.

Join us at 2pm ET on Tuesday, May 26, for a live news event where we’ll share updates on our lunar exploration plans: https://t.co/IJXA7xYwju

[V. Sarabia 🌌 @lneedspace]

@Alfon_Arranz Recomendadísimo este documental de la UNED, es el único que habla sobre el tulpa. Curioso que una historia tan fascinante nos sea tan desconocida.

https://t.co/YdFacfebYT

[Alfon Arranz @Alfon_Arranz]

¿Sabías que la primera mujer occidental que entró en la prohibida Lhasa (Tíbet) creó un ser imaginario que cobró vida propia?
Se llama Alexandra David-Néel y su experimento con un tulpa es una de las historias más alucinantes del misticismo del siglo XX. Vamos a desglosarlo👇👇

[Sara García Alonso @Astro_SaraG]

La salud mental de los #astronautas ocupa hoy en día una posición central para las agencias espaciales.

El modelo TOP GUN ha quedado obsoleto y los aspectos psicológicos, tanto personales como de grupo, forman parte de nuestra formación.

@astro_duque | @El_Intermedio

[V. Sarabia 🌌 @lneedspace]

@Alfon_Arranz La inflación explicada con los precios de los helados de nuestra infancia https://t.co/p8aoL82hc1

[V. Sarabia 🌌 @lneedspace]

@Alfon_Arranz @criscancer Si tomamos como referencia los 33 mil millones de euros que España destinó a gasto militar el año 2025, podríamos curar el cáncer de páncreas 1100 veces.

[V. Sarabia 🌌 @lneedspace]

@Alfon_Arranz Igualito que la estación de Kayashima, construida alrededor de un árbol de 700 años. Tenemos mucho que aprender de los japoneses...

[V. Sarabia 🌌 @lneedspace]

[2026] La primera foto de un átomo: un diminuto punto rosa.

[1990] La primera foto de la Tierra desde 6 mil millones de km: un diminuto punto azul pálido.

Somos átomos 🌌

[V. Sarabia 🌌 @lneedspace]

@Alfon_Arranz Canal+ sin duda. Circulaba la leyenda de que si entrecerrabas los ojos conseguías ver las pelis codificadas. El sonido ya era otro tema, como no entrecerrases el oído… Bromas aparte, inolvidables los guiñoles de Lo + Plus.

[V. Sarabia 🌌 @lneedspace]

@navedelmisterio Mi homenaje a usted. Un relato sonoro que podría haber salido de Milenio 3. Gracias por inspirar.

[V. Sarabia 🌌 @lneedspace]

Un caso inédito narrado por @navedelmisterio acaba de salir a la luz. ¿Qué ocurrió en realidad?

[Humanoid History @HumanoidHistory]

Welcome to 2026, the future time of METROPOLIS, released in 1927.

[V. Sarabia 🌌 @lneedspace]

Un caso inédito narrado por @navedelmisterio acaba de salir a la luz. ¿Qué ocurrió en realidad?

[V. Sarabia 🌌 @lneedspace]

La banda sonora completa de mi peli Tiovivo, interpretada en directo en @museorusomalaga y @ContenedorUMA está disponible GRATIS en Bandcamp ➡️ https://t.co/WulQEWonpP 🎠 Aquí una preview: