Prohibir la IA o hacerla aliada del aprendizaje?Yo lo tengo claro: integrarla.URGE cambiar cómo enseñamos y evaluamos @Fisicas_UCM @unicomplutense No podemos perder 15 años en debates tipo Python vs.MATLAB por comodidad. Esta vez nos jugamos una generación elpais.com/educacion/2026-10… – at Madrid, Spain

🚀 New paper with @Ismastro! Can cosmic acceleration arise from gravity's memory? 🌌 Nonlocal gravity predicts a restricted path in the (w₀, wₐ) plane. Data push its effects close to zero. Why? Find out! 👇 arxiv.org/abs/2610.20720

Happy to make Stanford World's Top 2% Scientists list for the 7th consecutive year (2020–2026)!🎉Still amazed I made it with all that teaching !😅 For those willing to listen @unicomplutense @Fisicas_UCM: RyCs ARE PDI for a reason: we do research & teach,and we do both well! – at Madrid, Spain

When your PhD students get AI for cutting-edge research and use it to turn the organization of the VAST conference dinner into a Harry Potter fan fiction starring their supervisor 😅 VAST: Very Advanced Supervisor Trolling...Thanks...I guess 😅 – at Madrid, Spain

Sydney ofrecía playa...será mañana. Yo elegí discutir con flechas, sobornar revisores externos con sushi y prepararme psicológicamente para septiembre. Las vacaciones están sobrevaloradas. 🎬 #HereBeGroups – at Bundeena, New South Wales

Primera version de los apuntes terminada... – at City of London, London

Bravo👏Orgulloso de que sean estudiantes de @Fisicas_UCM Como profe de Cuántica, y gran jugador de mus😉,solo puedo decir que jamás se me ocurrió que lo mejor para combatir absentismo fuera juntar ambas cosas. Si no puedes vencer, unete. Chapeau 🃏 elconfidencial.com/espana/ma…

Can dark energy remember inflation? The Goldstone Awakens @IPARCOS_UCM @Fisicas_UCM ! 🌌 New paper with Mariaveronica De Angelis: In scale-invariant R² gravity, unimodularity turns the dilatation Goldstone into thawing dark energy & links w₀,wₐ to nₛ! 👉arxiv.org/abs/2607.16405 – at Madrid, Spain

Can Starobinsky inflation end with a bang?💥In a new paper with my PhD student Jesús Luque and J.A.R.Cembranos @IPARCOS_UCM @Fisicas_UCM, we show that vacuum decay can raise spectral tilt,keep tensor-to-scalar ratio small & generate a stoch. GW background arxiv.org/abs/2607.15354 – at Madrid, Spain

📢 Pleased to announce the 1st Vacuum Stability (VAST) Workshop! indico.fis.ucm.es/event/42/ 📍 Madrid Royal Botanical Garden 📅 21–23 Oct 2026 Topics: EW vacuum stability, Phase Transitions & GWs, Supported by @FundacionBBVA and @IPARCOS_UCM Limited capacity. Apply early!

📢 Registration is open for the XIX Tonale Winter School on Cosmology! 📍 Passo del Tonale, Italy 📅 29 Nov–5 Dec 2026 🎓 Advanced MSc students, PhD students & early postdocs Theory for observers & observations for theorists. Deadline: 15 Oct indico.physi.uni-heidelberg.…

Volando y agradecido por las evaluaciones docentes de este curso.Saber que las clases fueron útiles y motivadoras es una alegría. Gracias a mis estudiantes por el esfuerzo, la energía y comentarios que hacen sonreír:“Un teórico con los pies en la tierra no se ve todos los días”🕊

A wonderful week at #PASCOS2026 with inspiring science and physics discussions! Many thanks to the organizers for hosting such a great meeting. Happy to have contributed with my talk "Post-Inflationary Higgs Dynamics from Spacetime Curvature". Until next time! 🌍✨

Corregir exámenes de cuántica II: mi forma favorita de explorar el multiverso.