Video series Advanced

Science4All — Lê Nguyên Hoang

How AI works Platform algorithms

What can I learn?

Polytechnique mathematician and Tournesol co-founder; deeper-dive videos on YouTube algorithms, AI ethics, information manipulation, and the mathematics of recommendation. More technically ambitious than most French-language AI content.

Core insight

Recommendation algorithms are optimisation problems — and what they optimise for (engagement, not truth or well-being) is a choice that produces predictable harms.

How to use it in daily work

Builds the deepest available French-language understanding of how recommendation systems work and why they produce the outcomes they do.

  • After watching the YouTube algorithm series, you can explain radicalisation pathways to a worried parent with mathematical precision rather than vague concern.

Time

20–40 minutes per video

Cost

Free

Prerequisites

Some maths confidence helpful