For context, as far as I am aware, ENS is the most prestigious non-engineering institute in France and is known for its extreme rigor. And l’X is the top engine

For context, as far as I am aware, ENS is the most prestigious non-engineering institute in France and is known for its extreme rigor. And l’X is the top engineering institute. https://en.wikipedia.org/wiki/%C3%89cole_normale_sup%C3%A9rieure_(Paris) https://en.wikipedia.org/wiki/%C3%89cole_normale_sup%C3%A9ri... Someone more familiar can correct me if I am wrong.