In 1908 I took a junior teaching position at the University of Bern. A 1909 lecture on relativistic electrodynamics won me an associate professorship in Zurich, and in July 1912 I returned to the ETH Zurich to a chair in theoretical physics.
I helped found quantum theory, yet I was skeptical that its randomness was fundamental rather than the result of an underlying determinism. Until the end of my life I maintained that quantum mechanics was incomplete.
In 1935, with Boris Podolsky and Nathan Rosen, I published the EPR thought experiment: two entangled particles whose properties can be predicted at a distance. We concluded quantum theory does not give a complete description of reality.
In 1916 I predicted gravitational waves: ripples in spacetime curvature that carry energy away from their source. They are possible because gravity in general relativity propagates at a finite speed, unlike in Newton's theory.
