Why You're Never Actually Touching Anything | Leonard Susskind

Описание: You think you're touching your chair right now. You think your feet are on the ground. But science says you have never touched anything in your entire life — and the reason why will completely change how you see physical reality.
In this video, we explore the mind-blowing quantum physics behind the sense of touch. At the atomic level, the particles that make up your hand never actually make contact with anything. Ever. What you feel as "touch" is actually electromagnetic repulsion between electron clouds — a force acting across empty space, interpreted by your brain as solid contact.
We discover that atoms are mostly empty space, that electrons never physically meet, that virtual photons mediate every "touch" you've ever felt, and that the Pauli exclusion principle plays a hidden role in why matter feels solid. From the chair you're sitting on to the hand of someone you love — nothing has ever truly touched.
This isn't philosophy. This is quantum mechanics.
What We Discover:

You have never touched anything in your entire life
Atoms are 99.9% empty space
Electromagnetic repulsion creates the illusion of solid contact
Virtual photons are the real messengers behind every touch
The Pauli exclusion principle prevents matter from passing through matter
Touch is a macroscopic illusion constructed by your brain
Even in high-speed collisions, atoms never make contact
The universe is fields and forces — not solid objects

Source:
This video is based on a scientific essay exploring quantum field theory, electromagnetic force, and the neuroscience of sensory perception — drawing from established principles of quantum mechanics and particle physics.
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