Thoughts, Paradoxes, and Beyond: A Century of Quantum Mechanics (1925–2025)

Celebrating the United Nations International Year of Quantum Science and Technology
For 100 years, quantum mechanics has transformed technology and changed the way we see the universe, while still leaving us with mind-bending mysteries:
- Is Schrödinger’s cat dead, alive… or both?
- Does the Moon exist if no one looks at it?
- Was Einstein right to doubt that “God plays dice”?
- Does the “spooky action at a distance” truly happen?
- Does time exist? And space?
- How did Heisenberg, who knew little about matrices, create matrix mechanics?
- Did Schrödinger truly understand his own equation?
- Can two entangled particles really “communicate at a distance”?
- And which world of the multiverse are we in?
In this talk, we’ll take a fascinating journey through a century of quantum ideas:
- From Planck’s quantum concept and Bohr’s atomic model,
- to Heisenberg’s matrix mechanics and Schrödinger’s wave equation;
- from the debates between the Copenhagen school and Einstein,
- to the EPR paradox and the experimental tests of Bell’s inequalities;
- and finally, to quantum superposition, entanglement, and the rise of quantum computing.
This is not just a history of science — it’s a story of paradoxes, imagination, and discovery. A story that still challenges our common sense and reshapes how we understand reality.
Event Information
Date & Time: Friday, November 7, 2025 · 8:00 PM (Eastern Time)
Location: Online via Zoom (Zoom link will be provided upon registration)
About the Speaker
Sean Tan is a Canadian educator, founder of two technology colleges in Toronto, and long-time president of both. Passionate about making complex science understandable, he has spent years studying the history and ideas of quantum mechanics. Over the last six years, Sean has shared his insights in more than a dozen talks on quantum topics, engaging audiences of all ages and backgrounds with clarity, curiosity, and enthusiasm.
Join us for this CPAC seminar and explore the paradoxes, mysteries, and breakthroughs that continue to shape our understanding of the quantum world.
