The innovations brought about by the researchers and students at École Polytechnique are born of research at the crossroads between the sciences. They are working in all the fast-growing fields that represent the major challenges for the next 225 years: data science, sustainable development, bio-engineering, health, cybersecurity, IoT, artificial intelligence, energy, economics, finance, corporate social responsibility and the climate. Through these flagship themes, the School is reasserting its ambition to change tomorrow’s world and act on issues with a high impact on society.