Varun Kapoor

Kapoorlabs style 2026, we are on fire, bond fire.

KapoorLabs January 2026

Flammkuchen samosa for Sunday'sbrunch! With mango mint chutney. Unique recipes, unique tastes, only at kapoorlabs office space.

First day back in KapoorLabs office, Since 2021 the opening time always has been 12:00 and closing time 24:00.

Now the codes run overnight and do their thing of segmenting mega volumes of ZYX image of shape (200, 8000, 8000) pixels with StarDist.

And we are open for Business year 2026 from today on, back with full force. Open for business 🔔

#meetings, #analysis, #coding, #cookiecutter-templating

Ding Ding Ding.

Med update: Meditated during a meeting today sitting comfortably on a couch and off late in my meditations I have been mostly seeing the color Blue, it is larger in size than other colors and after meditating i could hear better/more like if someone puts a cup down on the table, i hear more of it.

Stat physics lives in 6N dimensional (D) space. volume in 6N space is sum over 6D distributions. thermodynamic limit: only peak term survives

Compute volume of Nd-spheres → students get why thermodynamics works → partition functions become algebra

nobody starts here. they should

momentum pattern that they formed after initially starting from a random state and jolted me to very very naturally open my eyes and I felt my awake state was so much more awake, focussed and heightened. This is better than sleeping, but in sleep I do have amazing dreams so both are awesome.

Transcendental Meditation Diaries: This is what I experienced today:

🟡 colored structures appearing and then vanishing at random closed eye locations followed by 🟢and then 🔵. Mostly it was yellow and then at the very end black dots tinnier than the previous circles arranged in a high angular

I built a free app that tells you if you're actually beating the S&P 500.

Rolling Sharpe analysis.
Real-time prices.
EUR conversion.
No signup.

If it makes you a better passive investor, buy me a coffee ☕ (link at the top of the app): huggingface.co/spaces/vkapo...
Good ☕costs around 10 EUR

Mint, coriander leaves, cumin seeds, lemon, chilies: grind and add to mango yogurt, this you can use as a condiment and spread it on your wrap as a base, add cooked food on top and you get a refreshing better than döner essen in Germany, never understood the cold veggies in döner for freshness sake

📊 Built a free portfolio tracker for Europeans investing in US/EU markets!

✨ Live prices from Yahoo Finance
💱 Auto USD/EUR conversion
📈 Sharpe ratio vs S&P 500
📉 P&L waterfall & scenario analysis
🎯 Risk-adjusted returns

All in EUR 👉 huggingface.co/spaces/vkapo...

One of the underrated papers this year:
"Small Batch Size Training for Language Models:
When Vanilla SGD Works, and Why Gradient Accumulation Is Wasteful" (arxiv.org/abs/2507.07101)

(I can confirm this holds for RLVR, too! I have some experiments to share soon.)

Kept my sauce promise! 🌿 Mint chutney with German twist—mango yogurt instead of curd. Just ONE chili but unbelievably sharp! Sweet mango notes underneath = perfect sweet-sharp burst. Never buying supermarket sauces again! 🔥✨

This page in randomly chosen book reminded me of a pet project of mine.

holiday brain: "should actually finish that"

dec 28: code done, paper submitted

live at kapoorlabs.fr/Entra/ & huggingface.co/spaces/vkapo....

Take theorems, derive corollaries, implement, then you understood it #FunnyBrain

India's big cities face big challenges of toxic air, broken roads and unpicked rubbish Many Indian cities rank at the bottom of liveability indexes despite big government spending on infrastructure.

Skip India Movement, I never go there. If you want the Indian experience just visit London UK, there are some regions offering authentic food, clothing n cultural experience sans bad air, water, roads, tobacco stains n ill mannered people, well last bit can still be.

www.bbc.com/news/article...

Just submitted "entra" to JOSS! 🚀 Entropy-conserving transformations using divergence-free vector fields for Gaussianization. From code to paper in 2 days.

✅ PyPI package
✅ Streamlit demo
✅ HuggingFace space
✅ Full docs

Info theory meets differential geometry.

github.com/Kapoorlabs-C...

Just deployed our entropy-conserving transformation app on kapoorlabs.fr/Entra 🚀

Transforms uniform→Gaussian distributions while preserving entropy using Levenberg-Marquardt optimization.

Live demo available (DM for credentials). Looking for clients with real data challenges.

#DataScience #Python

Entra - a Hugging Face Space by vkapoor Transformation using Divergence-free tensor basis functions

Just released Entra 🚀: transform any distribution to Gaussian while conserving entropy using divergence-free vector fields 📊✨
Try it now 👉: huggingface.co/spaces/vkapoor/Entra
No data? Click "Generate Uniform Distribution" → "Run Transformation" → watch the magic happen! 🪄

Also wrapping up my single-author paper on entropy-conserving transformations using divergence-free vector fields! 🎉
From fundamental math theory → production-ready code. Paper + implementation dropping open source first thing 2026.
When theory meets practice. 📊✨

After 10 years, finally ported my C++ divergence-free transformation algorithm to Python! 🎉 Transforms any distribution → Gaussian while preserving entropy. Mixed physics/CS/math challenge. Claude helped with docs, flowcharts & viz. Holiday coding wins! #MachineLearning #Python #PetProjects

There must be a way to compute internal room pressure & temperature by analyzing this video of escaping heat (hot air molecules). The angle of escape wrt the horizontal table shadow must mean something, does anybody know what and how to do such a Christmassy thermodynamic calculation? Merry X-mas

Holiday weekend setup:
☑️ Cozy blankets
☑️ Hot drinks
☑️ One very thick nanoelectronics textbook

Made my first pick from the book pile based on a bit of market logic - DRAM prices up 30% has me wondering what all the fuss is about 😄

#HolidayWeekendReading #Semiconductors

1 year testing AI coding tools:
❌ ChatGPT - disconnected from our code
❌ Claude Chat - manual context every time
❌ Custom RAG - we built it ourselves lol
✅ Claude Code (Opus 4.5) - THE ONE
Runs in terminal. Knows our codebase. Writes code that looks like ours.

New hobby unlocked: Learning Sanskrit... through German 🇩🇪
Why? To create the most niche fusion genre ever: Varuna-Purana-Techno - ancient Vedic verses meet Berlin's hardest techno.
This is either genius or madness. Probably both.
#Sanskrit #Techno #Berlin #MusicalExperiments

Man of my word, ever since our longest term paper was submitted as a pre-print I locked the doors of KapoorLabs office for this year to focus on my hobbies and proof of it can be found in my Github contributions map.

Life is not that short, you just have to know how to manage time.

Sundays are for working all the muscles - arms, legs, brain cells,tubules mRNA and doing things with your hands (fingers included).
Like how to derive Taylor series for real and complex variables? 16 pages to do it right
handwritten, no screens. building from first principles is meditation 📐✨

November 6th has made itself an auspicious day, all good things happen at an angular frequency of 2π/4.
2021: KAPOORLABS founded
2025: Morphodynamics preprint drops
Quelle coïncidence 🎯
See you in 2029.
2021: annuaire-entreprises.data.gouv.fr/entreprise/k...
2025: www.biorxiv.org/content/10.1...

A novel recipe, battered bread with tea, start your Sunday spicy.

Six years of work, and we've finally connected microscopy images to physics in ways that actually work. That foundation is solid now. Next move: cell behavior and drug discovery through physics principles. It's the hard problem, but we've got the right pieces in position.

Time to play. 🧡