---
title: "Tanguy Pauwels (@tanguy-pauwels) | Hashnode"
description: "ML Engineer & Full Stack Developer. Read the latest articles by Tanguy Pauwels on Hashnode."
url: "https://hashnode.com/@tanguy-pauwels"
---

@tanguy-pauwels

# Tanguy Pauwels

@tanguy-pauwels · France · Joined April 2026

ML Engineer & Full Stack Developer

[Website](https://tanguy-pauwels.fr/)

### [\[3\] Post-Mortem Analysis: Why My First World Model (JEPA) Is "Blind"](https://blog.tanguy-pauwels.fr/why-my-jepa-is-blind?utm_source=hashnode&utm_medium=feed)

Explore why a JEPA world model fails with low data. A technical autopsy of latent space, SIGReg constraints, and scaling strategies for robotics.

11 min read · [blog.tanguy-pauwels.fr](https://blog.tanguy-pauwels.fr/why-my-jepa-is-blind?utm_source=hashnode&utm_medium=feed)

[Apr 15](https://hashnode.com/posts/why-my-jepa-is-blind/69df84d270e165e0d8a23d2f)

### [\[2\] Data Engineering: Why and How to Convert LeRobot (Parquet/MP4) to HDF5](https://blog.tanguy-pauwels.fr/from-mp4-to-hdf5?utm_source=hashnode&utm_medium=feed)

Why MP4 is bad for JEPA training and how to build a memory-efficient HDF5 conversion pipeline for LeWM World Models.

4 min read · [blog.tanguy-pauwels.fr](https://blog.tanguy-pauwels.fr/from-mp4-to-hdf5?utm_source=hashnode&utm_medium=feed)

[Apr 15](https://hashnode.com/posts/from-mp4-to-hdf5/69df5cb3fd38c9c17491d1ba)

### [\[1\] Rethinking Robotics: Why I’m Betting on JEPA over VLAs](https://blog.tanguy-pauwels.fr/jepa-vs-vla-rethinking-robotics?utm_source=hashnode&utm_medium=feed)

Explore why JEPA could outperform VLA models in robotics. A deep dive into latent dynamics, physical hallucinations and the path to System 2 reasoning

5 min read · [blog.tanguy-pauwels.fr](https://blog.tanguy-pauwels.fr/jepa-vs-vla-rethinking-robotics?utm_source=hashnode&utm_medium=feed)

[Apr 15](https://hashnode.com/posts/jepa-vs-vla-rethinking-robotics/69df5837fd38c9c1748d7232)