Double-slit experiment
Used as an example in quantum theory where observing interference patterns can lead to conclusions about multiple universes.
Videos Mentioning Double-slit experiment

Scott Aaronson: What is a Quantum Computer? | AI Podcast Clips
Lex Fridman
A foundational experiment in quantum mechanics demonstrating wave-particle duality, where particles exhibit both wave-like and particle-like behavior.

The Deutsch Files II
Naval
Used as an example in quantum theory where observing interference patterns can lead to conclusions about multiple universes.

Edward Frenkel: Reality is a Paradox - Mathematics, Physics, Truth & Love | Lex Fridman Podcast #370
Lex Fridman
A classic quantum mechanics experiment demonstrating the wave-particle duality of electrons, where their behavior changes depending on whether they are observed, illustrating the observer's critical role in reality.

Does Superdeterminism save Quantum Mechanics? Or does it kill free will and destroy science?
Sabine Hossenfelder
A prominent quantum mechanics experiment demonstrating wave-particle duality. Sending single particles through the slits reveals interference patterns, which vanish if which-path information is obtained.

We Live in a Simulation. The evidence is everywhere. All you have to do is look.
The Why Files
A fundamental experiment in quantum mechanics demonstrating wave-particle duality, used as evidence for simulation theory when particle behavior changes based on observation.