28th July 1928 – 1st October 1990
Editor’s Note:
This is Part III of our series on John Stewart Bell and the enigma of quantum theory. Part I explored Bell’s early life and growing fascination with the quantum world, while Part II examined how he formulated his famous inequalities and opened the door to experimental tests of reality itself. Now, in Part III, we move beyond the theorem to its legacy. Read on to discover how Bell’s work shattered the stagnation of the Copenhagen interpretation, inspired a renaissance in quantum foundations, and laid the essential groundwork for today’s most exciting technologies—from quantum cryptography and teleportation to the quantum computer. Along the way, we meet the physicists who closed the loopholes, pushed the boundaries, and proved that Bell’s insight remains the beating heart of the quantum revolution.

