How does Alexander grothendieck contribution helps us today?

Alexander Grothendieck's contributions to mathematics, particularly in algebraic geometry, have profoundly influenced modern mathematics and its applications. His development of concepts such as schemes, sheaves, and toposes has provided a robust framework for understanding geometric and topological properties of algebraic structures. These ideas not only facilitate advanced theoretical research but also underpin various fields, including number theory and mathematical physics. Today, Grothendieck's work continues to inspire new theories and methods, shaping both the foundations and applications of mathematics.