Yasha Eliashberg (Stanford)
Crossroads of symplectic rigidity and flexibiity

Abstract: The struggle between symplectic rigidity and flexibility
shaped the development of symplectic topology since its inception more
than 30 years ago. Most spectacular advances in the last 30 years were
on the rigid side. Hower, recently there were discovered several new
remarkable instances of symplectic flexibility on the frontier with
the rigid symplectic world.